GB/T 12459  弯头 DN 50-Ⅱ-Sch4090ES

DN 50-Ⅱ-Sch40 90ES

DN80-PN100 WN M I

DN 100×65-Sch40S 90ELR

DN 100×40-Ⅱ-3 RC

PJ/SE25(B)-16RF

WN 50(B)-63 RF S=10

WN200-300FM SC-

WN 200(B)-16 FM S=6

WN 25(B)-16 FM S=3

PL200(B)-16 RF b=4RF6f7-300RF S= r rfwn10 rRJ B120Rh40s à 12=-370drah1n4h0h