GB/T 12459  弯头 DN 18-390ELย ุทย

DN 18-3 90ELย ุทย

WN 1"-300 LT Sch40S

HG/T20592 PL40(B)-6 RFp

2 RF 2200-0.6(B0-70.5 b610000-1.6/100mn50-1 Rrf s=2

SO 2"-300 RF

5 RF 1800-4.0RF50h4450.

PL65(b)-16RFBb)šÂ¬FF

BI 750sRJSO2

SO150-150RF Sch40s1.0Cm0 RFS=ВҙR

WN 400-1