GB/T 12459  弯头 DN 700-Sch80S90ES5L50-150RF /u00cso100

DN 700-Sch80S 90ES5L50-150RF /u00cso100

SO40-25T-10RFrnal_source=chat1

PL 50(A)-10 RF-Sc

SP-2 DN=2400 δ=10/h1

PL 80B-16 RF160f/@47023 RF100F10ml5 r0250(BR

wn50b-63rf300rf1af8c/F00

SP-5-15-10 S=–ø20c/a FM1500-00

PL150B-16 RF.,6

2 fm1900-0.6

20615