HG/T 20592  法兰 PL 50(B)-16 RF b=1N57026

pl50b)-16rf b=1N57026

SO 150(A)-25 RF

pl100-16ff c=200

pl150-16rj

WN700(B)-16 RF S=00050 rfrf

LWN80-300 RF B=77.5 L=397

WN 100(B)-160 RJ S=80 RF16rfR500frawsch40s61F SCH30730FS5 RJ250Cn400-60

SO 150(B)-25 RF

LWN80-300 RF B=77.5 H=801

bl25-150 fm6/u20