GB/T 12459  弯头 DN 300-Ⅱ-1090EL=/ B1)-960s S=3.5TFch140 TR/-16 RFB)

DN 300-Ⅱ-10 90EL=/ B1)-960s S=3.5TFch140 TR/-16 RFB)

BL 250-10 RF S=6 H=58 Nrf1

WN40(B)-25 RF Sâ´=5.60/016RR

wn40b-63t9468SRF S=120RF S=1.5S

WN65-100RF=FF S=10ANSI0RF9so60 RF12ãRF

WN150A-40RF S/0544.050Mr RFRFRFF60Sch80°50-300 rF RF

PL40(B)-