HG/T 20592  法兰盖 BL 300(B)-16 RFf31603b=1/R30-0.10 RF10RS=F S=1=1

bL300(B)-16RFf31603b=1/R30-0.10 RF10RS=F S=1=1

SO 100(B)-10 FF

A BL800-600 RFN100-105Sch4RFF60R

47023 rf1500-0.6

WN 200(B)-100 RF/

BL65-40TB)-25R

wn100(b)-25g

BI40619n50-10-2.h fma525163/h bRF8325520S²п h=16

WN 32-300 RFokerSc0 dп�

SO 850-150RF/