GB/T 9124.1  法兰 DN700-PN10 PL RF Ⅰ RF0/0RF0h40

DN700-PN10 PL RF I RF0/0RF0h40

PL 50(B)-16 RFRF S709RF)-40fd

3 RF 1900-6.420δ0=10

PL100 B-10 RFfF/f b=617 B´

wn100(B)-25RFf5100x11.06 R

JPL 50×80(B)-16 RF

so 80-150 RF0-220-10FM050rfF S322HG RF.3 B0-49 f1 BL25-

WN50-25FF D=0-105 RF rhrf/�

WN20