GB/T 12459  弯头 DN 150-Ⅱ-3.590EL

DN150-Ⅱ-3.5 90EL

WN 25-150 RFâu

so80-25RF80S=4000S00è1.6/150sch1/00�в”kersL1

PL20(A)-16 FF b=1=3F HG/=58

bl400-63rf€¦

WN40B-300RF�ย F6F

wn100-10rf 20.2S

bi 330f24410-so25-16Sch4092

WN25-300RF S=2640 s=5.16°-16 rf s=4.5 hg/@WN1

BL 15