HG/T 20592  法兰 PL 350-10 RFF)R)-6898

PL350(A)-10RFF)R)-6898

LWN25-150 RF Sch40S H=225

SO 1 1/2"-300 LT

耳座 B5

5 RF 1650-4.0 δ0=12

WN 16"-300 RF Sch40

WN200-300 RF SCH201M30

HP-1-3.5-8

PL400-150 RFRF Sch10SF Sch

BL40(A)-25RF09S�@S-� sch40 s000.G5 RJ R17.5F0 RF S�AR�