HG/T 20592  法兰 PL 125(B)-40 RF RF S/ -002-316LF Sh

PL125B-40Rf RF S/ -002-316LF Sh

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

WN250-150RFS=11.15H1=20

BL 50-150 RFï؟½ï؟½FM ScF SCF&@tTMES

wn32-160FM/64-A4-1000-8 DN=900 δn=8�F Ⅱ shRJ Sc5RRF@W0RF-R40S�

BI 500ch4Gp Sch40c

so450(a)-16 rf&e