GB/T 12459  弯头 DN 550-Sch4090ES0mpam-30ch4SS5 R

DN 550-Sch40 90ES0mpam-30ch4SS5 R

PL 80B-16 RF RFh2C=28wd=&ampampamp;eqid=80ebfc

WN8-150RF04004ch@47cmpampRï؟½)-25 R5

2 RF 2000-0.6 δ1=6

SO200A-16RF0B)-16rf0(B)-16RF b=sch0

3 RF1300-1.F6)F-

wn 100-1500 rj sch120 RF5/)-4

PL125(B)-40 RF

47023 -m