GB/T 12459  弯头 DN 400-Ⅱ-890EL

DN 400-Ⅱ-8 90EL

PL 15(A)-16 RF0l0ss0RF6RF 2/ch14l0 C=160-0/58 wn25(b)-100 rj/ C=0

PL600-25 mch80 RF)-F- RF Sch40Srum@�ذ

BL300-100M5988022c

WN 200-900 RJ Sch6 RF36F0S6

PJ/SE 125(B)-6 RF

WN150-150RF S=7

SO200(A)-6 RF2/

PL 50(B)-6 RF4340fm6

WN 200