HG/T 20592  法兰 BLS 150-16 RFft6rf168R/1

BL(S) 150-16 RFft6rf168R/1

wn40-600FMcl1

WN125(B)-160 RJN/

B WN 900-150 RF B=880

B WN1100-150RF

B WN1300-300 RF S=24

B WN900-300 RF S=16

BⅠ 400F/S

BⅠ900-S

BI 1000 H3000.cF/0fmsch40-63 HG/T20592-2sch40 s=4.2rf s=40-1.6 δ0=12MN350-600RJ&ampamp;