弯头 DN 350-Sch40S90EL

DN 350-Sch40S 90EL

PL100(B)-16 RF f1=5 C=74 D=1025 K=950 BB/

法兰LWN20-150rf50 RF

WN 50-150 FFhgBF01

WN500-600RF1-1.0HFM2.B-1.6/64-=6Ssch40s9RF/RF/p.25bS

a1000rf b1=168

wn 300-150rf sch-100rfh1=117h=231b=179.061

BI 1000B)-16RF6 RF RF/86-

WN 80(B)-