GB/T 12459  等径三通 DN 250-Ⅱ-10TSpampFRg2��Ærf3f 8001h

DN 250-Ⅱ-10 TSpampFRg2��Ærf3f 8001h

WN 80(B)-40 RF B=49 S=5.65

bi 4400h40(b b=00R0691�Ҫ1

WN300(B)-16 RF N=203.2 S==5/00 rf600

BⅡ 2100cF622-285=RFRF00-1.0-1.0

wn50(b)-10rf bS=146Fb=8

SO300(B)-40RF)-10rfRF900)-16 mf H1094180

WN400(B)-10RF