標題: ASTM F 1948-2005 用于外徑控制熱塑供氣管道和支管的金屬機械... [打印本頁] 作者: 兌水 時間: 2009-12-4 10:13 標題: ASTM F 1948-2005 用于外徑控制熱塑供氣管道和支管的金屬機械... F1948-99ae1 Standard Specification for Metallic Mechanical Fittings for Use on Outside Diameter Controlled Thermoplastic Gas Distribution Pipe and Tubing