GB/T 12459  弯头 DN 20-Sch80S90ELR0）161.6/5

DN 20-Sch80S 90ELR0）161.6/5

WN 80-300 RF SCH160t

PL32(B)-16 RF65/7

SO150(B)-16RF50-300 RF Sch8/-1-0.651RF-

WN32-16RF RFrf1500CH9/SCHwn458RF scA)-25 RF/0F8 rj0592MF30405

SO150-600RF

SO 32-300 RF

SO 100(B)-16 FF20-300 fm0-6.45FM6.3F0A150 RF Sch80d1.6