ASTM F1974-08 Standard Specification for Metal Insert Fittings for PolyethyleneAluminum Polyethylene
标准简介
ASTM F1974-08 Standard Specification for Metal Insert Fittings for PolyethyleneAluminum Polyethylene and Crosslinked PolyethyleneAluminum Crosslinked Polyethylene Composite Pressure Pipe1
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