GB/T 12459  同心异径管 DN 200×50-3RC0

DN 200×50-3 RC0

PL150(B)- 6 RF/

PL125(B)-16 RF=116-3150b-1/

WN65-25rf-1.0/38

PL 15(B)-16 m

PL125(B)-16 RF1656400sR/

PL38-10RFFmpampa/0pa

PL250-6RFhgcaS=

PL100(B)-16 RF f1=122/

PL 20(B)-25 RFf0/2mFF S1F600 RF Sch40S80-150RF/-5-900 RJRj/22.30 K=100-0