MSS SP-42-1999法兰端和对焊端耐腐蚀的闸阀、截止阀、角阀和止回阀150磅级（PN20）(英文版).pdfVIP

~ ~ STDDMSS SP-42-ENGL 2999 = 5770640 05DLLBO O29 = MSS SP-42-1999 Class 150 (PN 20) Corrosion Resistant Gate, ...