HG/T 20592  法兰 PL 400-6 RF hRF0 Rj0c3/u0/l=RF&G S=6

PL400-6RF hRF0 Rj0c3/u0/l=RF&G S=6

47021 rf1000-0.6 Р°в„–Т�

WN 1/2"-150 RF Sch40S

WN150-150 RF S=75h100

so 150a-150rfF6 RF04-2h80S-16r50-5

so 125(b)-16 rf/ RF20Jff.0/f RFï؟�

SO 20(A)-16 rfРЁВ

WN 50-300 RF=145/66-1240 a

wn65(b)-4