liuxilin1215 发表于 2017-8-28 10:10
ASTM D790-17 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics a ...
liuxilin1215 发表于 2017-9-20 19:04
ASTM D1525-17 Standard Test Method for Vicat Softening Temperature of Plastics
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