HG/T 20592  法兰 PL 500(B)-6 RFd=afb385

PL500(B)-6RFd=afb385

B WN850-150 RF XSRF

PL350B-10RF25R;400-1.F50-

BI 14003pampampm1400-1.0/

PL 150(B)-10 RF

WN15(A)-63 M04D=190 C

WN 40(B)-16 RFsF SC RF16RF00(R

WN 20-150 RF Sch160

BWN 650-150 RF6 RF)

WN 80(B)-25 RF S=4B10RFJ0-=7.1426H=190 h=70.61.6