標題: ASTM F 1973-2005 工廠安裝在聚乙烯(PE)油氣輸送系統... [打印本頁] 作者: 兌水 時間: 2009-12-4 15:05 標題: ASTM F 1973-2005 工廠安裝在聚乙烯(PE)油氣輸送系統... F1973-02 Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) Fuel Gas Distribution Systems