HG/T 20592  法兰 PL 100-40 RF2000 TSquo0RRF�

PL100-40RF2000 TSquo0RRF�

WN 10(B)-16 RF

WN 200-150 RF S=8h)1.16 RF 1JsRF@F SRF0�GF

WN 80(B)-25 RF S=8

WN 80(B)-25 RF S=4

HP-3sc10000g/5B)65

WN50(B)-40 gs4.2

WN 32(B)-16 RF S=4

WN 300-150 RF Sch40S FMRF5(B)pfRF6Sc2@

BL300(B)-25 RF�°آ¨� RFJsR