GB/T 12459  弯头 DN 600-Sch1090ESRF0S 45

DN 600-Sch10 90ESRF0S 45

SO26"-150 RF

WN1 1/2"-600 RF Sch140

hgt/@WN100-150 RF

SO38"-150 RF

BL 80-10RF300 M4.500A RF.016p@°F5@PFRF-150 FF5RF2@

LWN 50-600 RF B=40

WN 1"-150 RF Sch40S

PL 65(B)-6 RF

SO 150(B)-10RFampRFFJ S=34.5150 R