GB/T 9124.1  法兰 DN400-PN16 PL RF Ⅱ Cc SCF&@tT

DN400-PN16 PL RF ⅡCc SCF&@tT

WN 250-150 RF S=12.7

WN 100-150 RFSCH30 ASTM

WN 80-300 RF B=10

WN 150(B)-25 RF S=3

2 FM 1000-0.25 δ1=1077.5 RJ R1

WN200-600 RF S=10

PL 400(B)-10 RFJ��JsRF@F S��3.5f�5..01640S0F��Js

BL65(B)-25 rfc2@RF@ ScF