HG/T 20592  法兰 SO 80-25 RF)-63FMmpaҖf Sch40s=12/B=32

SO80-25 RF)-63FMmpaҖf Sch40s=12/B=32

LWN 50-150 RFunD=RF Sch40S350-1.RFampnbspfquothg20615 wn4006FM

BL100-16 RFRF ScBL250-25 RFFRF0-=1t-1.0/l15(b

pl25-40rj606)-150 RF Sca1JshH=/t20h40S300

WN 80(B)-16 RF S=4ampamp0(b)-1/T8f 800-f/

WN 50(B)-63 RF S