GB/T 12459  同心异径管 DN 100×65-6.02RC

DN 100×65-6.02 RC

WN 300(B)-63 RF

LJ 3"-150 RF Sch40S

PL1500-6RFsad

WN 14"-300 RF Sch10S

DN 80-Sch40S TS

PL32B-40RF

2 CFM 2800-0.25 δ1=20 D=3075

47021 c-rf450-0.6

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