GB/T 12459  管帽 DN 65-4C

DN 65-4 C

WN 6"-150 RF Sch40S

WN 40-63 T

SO 10-300 FM

WN 6"-150 RF Sch10S

SO 400-900 FM

WN 500-900 TSchFFam@F.F1Ff@4 rf 1Js-16 Rh/tm�S@RF@443RF@AFF Sc Sch

WN 65-600 RF��

WN 40(B)-16 RF S=4

LWN40-600 RF16 RF S=3.5Sf sch2S5 RJbР-RFWNN3