GB/T 12459  等径三通 DN 150-Sch160TS δ=b)-

DN 150-Sch160 TS δ=b)-

SO 125-16 RF/50f9078 &am

WN100-300 RFP160s60B=41mp

wn 50-40 rfwn50-16 rf s= 650-0.6=3.6600-1.6300-11.

PL 200(B)-25 RF

wn600-600 rf schRFFSch603R RF0-15020Rb)-16rfd00-1.

1 CRF 650-0.60-63=22 d= K= n=28 L=

BL250-300ff.5/u22

PL