GB/T 12459  弯头 DN 350-Sch10S90EL

DN 350-Sch10S 90EL

WN 15(A)-16 RF S=3

WN 200-150 RF Sch40S

BL600(b)-6RF90F SRf009/2/04 S=B=24/0/@-RJ5-R RRF0-F@00 T5@أ‚آ°F1Ff@F0(ASch80S

WN 1"-150 RF Sch80S00 RF Sch

WN 3 1/2"-150 RF Sch80

wn300-63 rfampampa

DN600-PN25 PL RF Ⅱ

wn80(b