GB/T 12459  弯头 DN 40-Ⅱ-SCH2090EL

DN 40-Ⅱ-SCH20 90EL

BL500-16RF

PL500(B)-6RFH2cr41Schersh0/

PL 150(B)-16 RF0800-

20592(A)WN100-16RF325-6n=/r.mh35RF S=190

bl20-63rf-2F50RF-Sch41Schersh0/

PL 300(B)-16 RF

PJ/SE 250(B)-16 RF

LWN 25-150 RF

PL 65(B)-16 RF605(B)-16hg3aF-0rf S6f-3 M¬&f100