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Beijing Samyon Instruments Co., Ltd.
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insulation core drilling machine

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insulation core drilling machine

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... test of plane type parts also. Standard: ISO 6508-2: 2015 Metallic materials – Rockwell hardness test – Part 2: Verification and calibration of ... 2024-12-09 20:11:25
...Rockwell hardness of steel pipe, pressure vessel, drill stem and other cylinder type parts, may determine the Rockwell hardness test of plane type ... 2024-12-09 20:11:25
...drill pipe, etc., may determine the hardness of other cylinder type and plane type parts also. Standard: GB/T 231.2-2012 Metallic materials - ... 2024-12-09 20:11:25
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