GB/T 12459  弯头 DN 80-Sch8090EL0-25r

DN80-Sch80-90EL0-25r

SO 300-25 M0-1F200Squ4h4

A 10000s-2500 RF SCH4000250-150RF Sch

47021 CM400-1.611 Sch

1 RF 300-1.6 δs=8a=1ІвҖ“iiF6t/in

WN65(B)-100FMS=6B)0000-

WN500 (B)-25RF35.6cFRF6R S=RF-0.250-16 RF/010592u0

WN 100-300 RF S=1044-1F0f-1

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