HG/T 20592  法兰 PJ/SE 400-16 RFh120 TR16п╝..��4pa BFpampampF hg/@4/ BB=10-b)-

PJ/SE400(A)-16RFh120 TR16п╝..��4pa BFpampampF hg/@4/ BB=10-b)-

DN50-PN6 WN G Ⅱ SO500 B-10 RF)-16 RF.0R6

PL100(B)-16 RF=5/FeFBδ=

WN100-150RF/SCH.16

WN 350-300 RF Sch40S

WN25(A)-16 RF S=4F

WN 3"-300 RF Sch10S

WN150-600 RF SCH6F@bi 10

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