Polarization Beam Splitter (PBS)

PBS Cube/Prism

Standard Cementation type PBS and High Power PBS.

Dimension Range:​ 0.75mm – 50.8mm, covering 0.5 inch, 1 inch, 2 inch.

Coating Wavelength Ranges:

Single Wavelengths:​ 488nm, 532nm, 633nm, 650nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1550nm.

Broadband Wavelengths:​ 420-680nm, 620-1000nm, 900-1300nm, 1200-1600nm.

Product Introduction

The Polarizing Beam Splitter (PBS) Cube, or PBS Prism, is a core polarization optics component, designed to efficiently separate incident natural or unpolarized light into two linearly polarized beams with mutually perpendicular polarization directions. One polarized beam is transmitted along the incident direction, while the other is reflected at a 90° angle to the incident light, achieving precise separation of polarization states. The prism end faces are coated with anti-reflection (AR) coatings, and the hypotenuse is coated with a polarization beam splitting film of high quality.

We offer two manufacturing techniques and two wavelength range options:

  1. Conventional Cementing and Advanced Optical Bonding.
  2. Single Wavelength and Broadband.
1. Conventional Cementing Process

This is a traditional and more economical manufacturing method for standard PBS.

  • Principle:​ A layer of optical adhesive (typically UV glue, for example, NOA61) is applied between the hypotenuses of two right-angle prisms, which are then cemented together. The thickness of the adhesive layer typically ranges from a few micrometers to over ten micrometers.
  • Advantages:
    • Lower Cost:​ The process is mature and allows for relatively faster production.
    • Lower Surface Requirement:​ The requirements for the accuracy (flatness, surface quality) of the prism surfaces are somewhat less stringent compared to optical contact bonding.
  • Disadvantages:
    • Low Laser Damage Threshold (LDT):​ The adhesive is an organic material with poor tolerance to laser power (especially high-power pulsed lasers). It is susceptible to burning and carbonization, leading to permanent PBS prisms damage.
    • Poor Thermal Stability:​ The adhesive’s coefficient of thermal expansion differs from that of glass. Under significant temperature changes, stress is induced, causing wavefront distortion (affecting beam quality) or even unglued. The upper temperature limit is typically below 100°C.
    • Long-term Reliability Concerns:​ The adhesive may age or turn yellow, degrading performance over time under strong UV exposure or harsh environments.
    • Increased Insertion Loss:​ The adhesive layer itself introduces minor absorption and scattering, more noticeable in broadband applications.
    • Presence of Adhesive Interfaces:​ Cementation PBS adds two extra glass-adhesive interfaces, theoretically increasing the risk of reflection and ghost images.
  • Application Scenarios:​ Primarily for applications with low requirements for power handling, thermal stability, and long-term reliability, such as:
    • General education and demonstration optical systems
    • Low-power measurement instruments
    • Some consumer-grade projection equipment
 2.Advanced Optical Bonding Technique

This is a more advanced, physical bonding process offering superior performance, for High Power PBS or laser PBS.

  • Principle:​ No adhesive is used. The bonding surfaces of the two prisms are polished to high optical precision (typically λ/8 or better, with high surface finish). In an ultra-clean environment, the flat, clean glass surfaces are brought into intimate contact, bonding directly via intermolecular van der Waals forces. This process requires precise control of angle and pressure, and the complete exclusion of dust and air. After optically contacted, the PBS prisms undergo further prolonged high-temperature thermal curing to achieve a fully fused and stabilized structure. It therefore is a deepened optical contacting process or optical fusion.
  • Advantages:
    • High Laser Damage Threshold (LDT):​ As there is no organic adhesive layer, the entire optical path is within glass, enabling it to withstand very high laser power (both CW and pulsed), making it the preferred choice for laser systems.
    • Excellent Thermal Stability:​ The assembly is made of the same glass type, ensuring matched coefficients of thermal expansion. It operates stably over a wide temperature range (-40°C to 200°C+), with minimal thermal stress.
    • Superior Long-term Stability & Reliability:​ No aging concerns. Highly resistant to humidity and chemical corrosion, offering an extremely long service life.
    • Enhanced Optical Performance:​ Eliminates adhesive-related absorption and scattering, resulting in higher transmission, lower wavefront distortion, and often a higher polarization extinction ratio.
    • No Adhesive Interface:​ Reduces unnecessary reflective surfaces.
  • Disadvantages:
    • Higher Cost:​ Demands more rigorous production precision, environment, and operator skill.
    • More Complex Process:​ Longer production cycle, generally requiring an additional 3-5 days compared to cemented products.
  • Application Scenarios:​ Used in high-end fields with stringent performance requirements, such as:
    • High-power laser systems (industrial processing, scientific research, medical lasers)
    • Precision interferometry, spectroscopic analysis
    • Optical systems for aerospace, defense, and other extreme environments
    • Ultra-high precision scientific experiments

 

Summary Comparison Table

Feature Conventional Cementing Process Advanced Optical Bonding Technique
Bonding Medium Optical Adhesive (Organic Layer) None, Van der Waals Forces (Direct Contact)
Cost Moderate Higher
Laser Damage Threshold Low High
Thermal Stability Poor (Adhesive sensitive to heat) Excellent (All-glass structure)
Long-term Reliability Moderate (Aging risk exists) Outstanding (Virtually permanent stability)
Optical Quality Good Excellent (Lower wavefront distortion, higher transmission)
Primary Applications Low-power, conventional optical systems, cost-sensitive products High-power lasers, extreme environments, high-end research instruments

 

How to Choose?

  • Choose the “Optical Bonding” PBS prism, or High Power PBS cube, if your application involves high-power lasers (especially pulsed lasers), requires operation across a wide temperature range or in harsh environments, or demands a long-term system stability and optical quality.
  • The “Cementing” PBS cube, or Standard PBS prism,​ is a cost-effective choice​ if your application involves routine optical setup, very low power, regular operating conditions, and a limited budget.

In summary, the advanced optical bonding technique, a deepened optically contacted process of optics fabrication, represents the pinnacle of PBS cube manufacturing. It embodies Photonchina’s years of accumulated expertise in precision optics production and is the optimal choice for meeting high-end and even extreme performance demands. The Conventional Cementing process remains a mature, reliable solution that strikes a balance between performance requirements and cost.

 

Technical Parameters

Products Type Standard PBS High Power PBS
Structure Glue Optical Bonding
Beam Deviation <3′ <3′
Flatness λ/4@632.8nm λ/8@632.8nm
Transmittance@1064nm Tp and Rs>95%;Rp and Ts<5% Tp and Rs>98%;Rp and Ts<1%
Surface Quality 60-40 20-10 
Laser Damage Threshold@1064nm 1-2 J/cm² >12J/cm²
Extinction Ratio >500:1 Narrow Band>3000:1

Broad Band>1000:1

 

Product Specifications for Photonchina’s PBS Products

The PBS prism is one of our company’s strength products. We offer high-quality, cost-effective, and promptly delivered products for both special customization and bulk orders. Our product line includes two main types: standard cemented structures and high-power PBS prisms (also known as Laser PBS), available with either single-wavelength or broadband coatings (broadband PBS). These correspond to different material choices, levels of precision, extinction ratios, and laser damage thresholds.

Standard Dimension Range:​ 0.75mm – 50.8mm, covering 0.5 inch, 1 inch, 2 inch.

Coating Wavelength Ranges:

  • Single Wavelengths:​ 488nm, 532nm, 633nm, 650nm, 808nm, 850nm, 980nm, 1064nm, 1310nm, 1550nm.
  • Broadband Wavelengths:​ 420-680nm, 620-1000nm, 900-1300nm, 1200-1600nm.

Material Options:​ N-BK7, Corning 7980, H-ZF glass series.

Below is a reference table for some of our product specifications. Please feel free to contact us at any time to check stock availability for the listed items or to inquire about customizing special products.

Note:​ H-K9L and JGS1 are the Chinese equivalents of N-BK7 and Corning 7980, respectively.

 

Standard PBS Cube/Prism
Photonchina Code Size (mm) Wavelength (nm) Material
CPBS-32-460A 3.2×3.2 460 H-K9L
CPBS-32-600B 3.2×3.2 600-700 H-K9L
CPBS-32-1250B 3.2×3.2 1250-1650 H-ZF3
CPBS-32-1480B 3.2×3.2 1480-1620 H-ZF3
CPBS-04-900B 4×4 900-950 JGS1
CPBS-05-460A 5×5 460 H-K9L
CPBS-05-500B 5×5 500-700 H-ZF3
CPBS-05-532A 5×5 532 H-K9L
CPBS-05-650B 5×5 650-700 H-K9L
CPBS-05-760B 5×5 760-800 H-K9L
CPBS-05-800A 5×5 800 H-K9L
CPBS-05-900B 5×5 900-1300 H-ZF3
CPBS-63-450B 6.35×6.35 450-650 H-ZF1
CPBS-63-650B 6.35×6.35 650-900 H-ZF1
CPBS-63-1045B 6.35×6.35 1045-1080 JGS1
CPBS-63-1200B 6.35×6.35 1200-1600 H-ZF3
CPBS-08-915A 8×8 915 H-K9L
CPBS-10-400B 10×10 400-640 H-ZF3
CPBS-10-423A 10×10 423 H-K9L
CPBS-10-450B 10×10 450-650 H-ZF3
CPBS-10-650B 10×10 650-950 H-ZF1
CPBS-10-633B 10×10 633~852 H-ZF3
CPBS-10-700B 10×10 700-900 H-ZF3
CPBS-10-700B 10×10 700-1100 H-ZF3
CPBS-10-1020B 10×10 1020-1070 H-K9L
CPBS-10-1200B 10×10 1200-1600 H-ZF3
CPBS-12-397A 12.7×12.7 397 JGS1
CPBS-12-399A 12.7×12.7 399 JGS1
CPBS-12-400A 12.7×12.7 400 H-K9L
CPBS-12-420B 12.7×12.7 420-680 H-ZF3
CPBS-12-450B 12.7×12.7 450-650 H-ZF3
CPBS-12-461A 12.7×12.7 461 H-K9L
CPBS-12-515B 12.7×12.7 515+532 H-K9L
CPBS-12-532A 12.7×12.7 532 H-K9L
CPBS-12-589A 12.7×12.7 589 H-K9L
CPBS-12-620B 12.7×12.7 620-1000 H-ZF3
CPBS-12-633A 12.7×12.7 633 H-K9L
CPBS-12-649A 12.7×12.7 649 H-K9L
CPBS-12-650B 12.7×12.7 650-900 H-ZF3
CPBS-12-680A 12.7×12.7 680 JGS1
CPBS-12-689A 12.7×12.7 689 H-K9L
CPBS-12-689A 12.7×12.7 689 JGS1
CPBS-12-750B 12.7×12.7 750-1050 H-ZF3
CPBS-12-780A 12.7×12.7 780 H-K9L
CPBS-12-795A 12.7×12.7 795 H-K9L
CPBS-12-798A 12.7×12.7 798 JGS1
CPBS-12-800A 12.7×12.7 800 H-K9L
CPBS-12-800B 12.7×12.7 800-905 H-ZF3
CPBS-12-810A 12.7×12.7 810 H-K9L
CPBS-12-813A 12.7×12.7 813 H-K9L
CPBS-12-900A 12.7×12.7 900 H-K9L
CPBS-12-900B 12.7×12.7 900-1200 H-ZF3
CPBS-12-954A 12.7×12.7 954 JGS1
CPBS-12-1013 12.7×12.7 1013 H-K9L
CPBS-12-1020B 12.7×12.7 1020-1090 H-K9L
CPBS-12-1060B 12.7×12.7 1060-1130 JGS1
CPBS-12-1064 12.7×12.7 1064 H-K9L
CPBS-12-1110 12.7×12.7 1110 H-K9L
CPBS-12-1310 12.7×12.7 1310 H-K9L
CPBS-12-1388 12.7×12.7 1388 JGS1
CPBS-12-1550 12.7×12.7 1550 H-K9L
CPBS-15-450A 15×15 450 JGS1
CPBS-15-522A 15×15 522 JGS1
CPBS-20-450B 20×20 450-650 H-ZF3
CPBS-25-345B 25.4×25.4 345-365 JGS1
CPBS-25-405A 25.4×25.4 405 H-K9L
CPBS-25-450B 25.4×25.4 450-650 H-ZF1
CPBS-25-450B 25.4×25.4 450-650 H-ZF3
CPBS-25-461A 25.4×25.4 461 H-K9L
CPBS-25-515A 25.4×25.4 515 H-K9L
CPBS-25-532A 25.4×25.4 532 JGS1
CPBS-25-532A 25.4×25.4 532 H-K9L
CPBS-25-620B 25.4×25.4 620-1000 H-ZF1
CPBS-25-626A 25.4×25.4 626 H-K9L
CPBS-25-633A 25.4×25.4 633 JGS1
CPBS-25-633A 25.4×25.4 633 H-K9L
CPBS-25-650B 25.4×25.4 650-950 H-ZF3
CPBS-25-698A 25.4×25.4 698 H-K9L
CPBS-25-700B 25.4×25.4 700-1000 H-ZF3
CPBS-25-780A 25.4×25.4 780 JGS1
CPBS-25-808A 25.4×25.4 808 H-K9L
CPBS-25-810A 25.4×25.4 810 H-K9L
CPBS-25-813A 25.4×25.4 813 H-K9L
CPBS-25-900B 25.4×25.4 900-1300 H-ZF1
CPBS-25-980A 25.4×25.4 980 JGS1
CPBS-25-1013 25.4×25.4 1013 H-K9L
CPBS-25-1020B 25.4×25.4 1020-1100 H-K9L
CPBS-25-1064 25.4×25.4 1064 JGS1
CPBS-25-1064 25.4×25.4 1064 H-K9L
CPBS-25-1200B 25.4×25.4 1200-1600 H-ZF3
CPBS-25-1310 25.4×25.4 1310 H-K9L
CPBS-25-1324 25.4×25.4 1324 H-K9L
CPBS-25-1550 25.4×25.4 1550 H-K9L

 

 

High Power PBS Cube/Prism
Photonchina Code Size (mm) Wavelength (nm) Material
HPBS-25-397A 2.5×2.5 397 H-K9L
HPBS-25-423A 2.5×2.5 423 H-K9L
HPBS-25-670B 2.5×2.5 670-710 H-K9L
HPBS-25-729A 2.5×2.5 729 H-K9L
HPBS-25-760B 2.5×2.5 760-780 H-K9L
HPBS-25-770A 2.5×2.2 770 H-K9L
HPBS-25-778A 2.5×2.5 778 H-K9L
HPBS-25-784A 2.5×2.5 784 H-K9L
HPBS-25-813A 2.5×2.5 813 H-K9L
HPBS-25-854A 2.5×2.5 854 H-K9L
HPBS-25-922A 2.5×2.5 922 H-K9L
HPBS-03-400B 3×3 400-450 JGS1
HPBS-03-450B 3×3 450-650 H-ZF3
HPBS-03-850A 3×3 850 JGS1
HPBS-03-1030 3×3 1030 JGS1
HPBS-03-1064 3×3 1064 JGS1
HPBS-03-1310 3×3 1310 JGS1
HPBS-03-1350 3×3 1350 JGS1
HPBS-32-1064 3.2×3.2 1064 H-K9L
HPBS-32-1530B 3.2×3.2 1530-1570 H-K9L
HPBS-35-445B 3.5×3.5 445-475 C7980
HPBS-04-390B 4×4 390-460 C7980
HPBS-04-405A 4×4 405 JGS1
HPBS-04-420B 4×4 420-460 H-K9L
HPBS-04-440B 4×4 440-480 C7980
HPBS-04-450B 4×4 450-470 C7980
HPBS-04-488A 4×4 488 H-K9L
HPBS-04-490B 4×4 490-550 JGS1
HPBS-04-512B 4×4 512-552 JGS1
HPBS-04-550B 4×4 550-600 H-K9L
HPBS-04-633A 4×4 633 JGS1
HPBS-04-633B 4×4 633±20 JGS1
HPBS-04-670B 4×4 670-690 C7980
HPBS-04-707A 4×4 707 JGS1
HPBS-04-780A 4×4 780 H-K9L
HPBS-04-780A 4×4 780 JGS1
HPBS-04-785B 4×4 785±20 JGS1
HPBS-04-785B 4×4 785±20 JGS1
HPBS-04-852A 4×4 852 JGS1
HPBS-04-900B 4×4 900-950 JGS1
HPBS-04-1020B 4×4 1020-1090 JGS1
HPBS-04-1064 4×4 1064 JGS1
HPBS-04-1064B 4×4 1064±30 JGS1
HPBS-05-375B 5×5 375-405 JGS1
HPBS-05-395B 5×5 395-415 JGS1
HPBS-05-460A 5×5 460 JGS1
HPBS-05-460B 5×5 460-470 JGS1
HPBS-05-488A 5×5 488 JGS1
HPBS-05-515A 5×5 515 JGS1
HPBS-05-532A 5×5 532 JGS1
HPBS-05-630B 5×5 630~650 H-K9L
HPBS-05-729A 5×5 729 JGS1
HPBS-05-780A 5×5 780 JGS1
HPBS-05-915A 5×5 915 JGS1
HPBS-05-980B 5×5 980±20 C7980
HPBS-05-1020B 5×5 1020-1040 H-K9L
HPBS-05-1020B 5×5 1020-1090 H-K9L
HPBS-05-1030B 5×5 1030±20 C7980
HPBS-05-1064B 5×5 1064±30 JGS1
HPBS-05-1100 5×5 1100 H-K9L
HPBS-05-1510B 5×5 1510-1560 JGS1
HPBS-05-1550 5×5 1550 H-K9L
HPBS-05-1950 5×5 1950 JGS1
HPBS-06-375A 6×6 375 JGS1
HPBS-06-440B 6×6 440-460 JGS1
HPBS-06-488A 6×6 488 JGS1
HPBS-06-532A 6×6 532 H-K9L
HPBS-06-532A 6×6 532 JGS1
HPBS-06-632A 6×6 632.8 JGS1
HPBS-06-633A 6×6 633 H-K9L
HPBS-06-670B 6×6 670±30 C7980
HPBS-06-780A 6×6 780 JGS1
HPBS-06-830A 6×6 830 H-K9L
HPBS-06-1020B 6×6 1020-1090 JGS1
HPBS-06-1030B 6×6 1030±20 JGS1
HPBS-06-1064B 6×6 1064±20 JGS1
HPBS-63-445B 6.35×6.35 445-475 C7980
HPBS-63-512B 6.35×6.35 512-552 JGS1
HPBS-63-650B 6×6 650-950 H-ZF3
HPBS-63-744A 6.35×6.35 744.4 C7980
HPBS-63-750B 6.35×6.35 750-850 C7980
HPBS-63-795A 6×6 795 C7980
HPBS-63-807A 6.35×6.35 807.3 C7980
HPBS-63-1010B 6.35×6.35 1010-1045 JGS1
HPBS-63-1010B 6.35×6.35 1010-1060 JGS1
HPBS-63-1020B 6.35×6.35 1020-1070 C7980
HPBS-63-1020B 6.35×6.35 1020-1070 H-K9L
HPBS-63-1045B 6.35×6.35 1045-1080 JGS1
HPBS-63-1064 6.35×6.35 1064 C7980
HPBS-63-1064B 6.35×6.35 1064&1030 JGS1
HPBS-63-1600B 6.35×6.35 1600-1650 JGS1
HPBS-63-2000B 6.35×6.35 2000-2100 C7979
HPBS-07-488A 7×7 488 H-K9L
HPBS-07-532B 7×7 532±20 C7980
HPBS-07-1034B 7×7 1034-1094 JGS1
HPBS-07-1064 7×7 1064 C7980
HPBS-07-1180 7×7 1180 JGS1
HPBS-07-1550B 7×7 1550±30 H-K9L
HPBS-75-390B 7.5×7.5 390-460 C7980
HPBS-08-808A 8×8 808 JGS1
HPBS-08-915A 8×8 915 H-K9L
HPBS-08-1020B 8×8 1020-1090 C7980
HPBS-08-1057B 8×8 1057-1080 JGS1
HPBS-10-399A 10×10 399 JGS1
HPBS-10-423A 10×10 423 H-K9L
HPBS-10-488A 11×11 488 JGS1
HPBS-10-510B 10×10 510-525 JGS1
HPBS-10-729B 10×10 729-733 H-K9L
HPBS-10-760B 10×10 760-785 C7980
HPBS-10-780A 10×10 780 H-K9L
HPBS-10-780A 10×10 780 JGS1
HPBS-10-852A 10×10 852 H-K9L
HPBS-10-860A 10×10 860 JGS1
HPBS-10-915A 10×10 915 C7980
HPBS-10-1020B 10×10 1020-1070 H-K9L
HPBS-10-1020B 10×10 1020-1070 JGS1
HPBS-10-1053B 10×10 1053±10 JGS1
HPBS-10-1064 10×10 1064 JGS1
HPBS-10-1535B 10×10 1535-1565 H-K9L
HPBS-11-488A 11×11 488 JGS1
HPBS-12-301A 12.7×12.7 301.5 JGS1
HPBS-12-318A 12.7×12.7 318 JGS1
HPBS-12-323A 12.7×12.7 323 JGS1
HPBS-12-323B 12.7×12.7 323-326 JGS1
HPBS-12-343A 12.7×12.7 343 JGS1
HPBS-12-345B 12.7×12.7 345-357 JGS1
HPBS-12-345B 12.7×12.7 345-365 JGS1
HPBS-12-350B 12.7×12.7 350-360 JGS1
HPBS-12-355A 12.7×12.7 355 JGS1
HPBS-12-360B 12.7×12.7 360±5 JGS1
HPBS-12-365B 12.7×12.7 365~375 JGS1
HPBS-12-366B 12.7×12.7 366-369 JGS1
HPBS-12-369A 12.7×12.7 369 JGS1
HPBS-12-369A 12.7×12.7 369.5 JGS1
HPBS-12-375A 12.7×12.7 375 JGS1
HPBS-12-389A 12.7×12.7 389 JGS1
HPBS-12-392B 12.7×12.7 392-399 JGS1
HPBS-12-395B 12.7×12.7 395-415 JGS1
HPBS-12-396A 12.7×12.7 396 JGS1
HPBS-12-397B 12.7×12.7 397-423 JGS1
HPBS-12-400A 12.7×12.7 400 H-K9L
HPBS-12-400A 12.7×12.7 400.5 JGS1
HPBS-12-415B 12.7×12.7 415-425 JGS1
HPBS-12-420A 12.7×12.7 420 H-K9L
HPBS-12-420A 12.7×12.7 420 JGS1
HPBS-12-435A 12.7×12.7 435 JGS1
HPBS-12-450B 12.7×12.7 450-460 JGS1
HPBS-12-450B 12.7×12.7 450-650 C7980
HPBS-12-450B 12.7×12.7 450-650 H-ZF3
HPBS-12-450B 12.7×12.7 450-650 C7980
HPBS-12-461A 12.7×12.7 461 JGS1
HPBS-12-483A 12.7×12.7 483 JGS1
HPBS-12-493B 12.7×12.7 493-553 JGS1
HPBS-12-510B 12.7×12.7 510-550 JGS1
HPBS-12-515B 12.7×12.7 515-532 JGS1
HPBS-12-633A 12.7×12.7 633 JGS1
HPBS-12-650B 12.7×12.7 650-950 H-ZF3
HPBS-12-679B 12.7×12.7 679-698 JGS1
HPBS-12-689A 12.7×12.7 689 JGS1
HPBS-12-720B 12.7×12.7 720±10 JGS1
HPBS-12-750B 12.7×12.7 750-850 C7980
HPBS-12-785A 12.7×12.7 785 C7980
HPBS-12-813A 12.7×12.7 813 JGS1
HPBS-12-832B 12.7×12.7 832-872 JGS1
HPBS-12-852A 12.7×12.7 852 JGS1
HPBS-12-866A 12.7×12.7 866 JGS1
HPBS-12-900B 12.7×12.7 900-1200 H-ZF5
HPBS-12-935A 12.7×12.7 935 JGS1
HPBS-12-1020B 12.7×12.7 1020-1090 JGS1
HPBS-12-1060B 12.7×12.7 1060-1130 JGS1
HPBS-12-1064 12.7×12.7 1064 JGS1
HPBS-12-1156 12.7×12.7 1156 JGS1
HPBS-12-1200B 12.7×12.7 1200-1280 JGS1
HPBS-12-1310 12.7×12.7 1310 JGS1
HPBS-12-1550 12.7×12.7 1550 JGS1
HPBS-12-1560 12.7×12.7 1560 JGS1
HPBS-12-1950 12.7×12.7 1950 C7979
HPBS-12-266A 12.7×12.7 266 C7980
HPBS-15-1470 15×15 1470 C7980
HPBS-15-729A 15×15 729 JGS1
HPBS-15-1725 15×15 1725 C7980
HPBS-20-750B 20×20 750-850 H-K9L
HPBS-20-1030 20×20 1030 C7980
HPBS-25-266A 25.4×25.4 266 C7980
HPBS-25-343A 25.4×25.4 343 JGS1
HPBS-25-345B 25.4×25.4 345-365 JGS1
HPBS-25-350B 25.4×25.4 350~360 C7980
HPBS-25-355A 25.4×25.4 355 JGS1
HPBS-25-460A 25.4×25.4 460 JGS1
HPBS-25-515B 25.4×25.4 515-532 JGS1
HPBS-25-532B 25.4×25.4 532±5 JGS1
HPBS-25-633A 25.4×25.4 633 JGS1
HPBS-25-775A 25.4×25.4 775 JGS1
HPBS-25-1013 25.4×25.4 1013 JGS1
HPBS-25-1020B 25.4×25.4 1020-1070 JGS1
HPBS-25-1030B 25.4×25.4 1030-1080 JGS1
HPBS-25-1550 25.4×25.4 1550 C7980
HPBS-25-1550 25.4×25.4 1550 JGS1
HPBS-30-1030B 30×30 1030-1080 JGS1