GB/T 12459  弯头 DN 700-Sch16090ES25uRJ407.5 RJRFrc

DN 700-Sch160 90ES25uRJ407.5 RJRFrc

WN65(a)-25fm RF7.5 RJRFrcmpafff1.0

WN25-300RFch40RFh

BL 25B)-16 RF

BI 1500R¬50

BL100-40 M00

LWN 50-300 RF H=300

SO100(B)-16 RF.00006mrf55

bl400-16 rf c=39.5F0 RF S/ch80s7502023H10525 FRh

wn40(a)-16rf s=3.500919