HG/T 20592  法兰盖 BL 300-16 RF/j&0Sa-0.6h=56δ=1116

BL300(A)-16RF/j&0Sa-0.6h=56δ=1116

PL 150(B)-6 RF B=154amp/00h80S836-

WN 400(B)-16 RF S=10

WN 125-150 RF

LWN40-300 RJ H 40-150R6mm/

WN80-300 RF B=774per.mC0(bF11

SO 125(B)-6 FFch40650 RFRF S0-1.6 δ=5 S=61M1

PL200-6RF10-0.25/6522-- Sc0S=b=40-100L

W