killer007 发表于 2019-10-18 13:03:55

求原版标准ASTM D3840-2019 Standard Specification for “Fiberglass” (Glas

求原版标准ASTM D3840-2019 Standard Specification for “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe Fittings for Nonpressure Applications

killer007 发表于 2019-11-11 11:31:02

咋没人来帮帮忙啊！！！:Q:Q:Q

erru 发表于 2019-11-12 09:02:51

帮不上忙...遗憾:(:(:(   
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