GB/T 12459  弯头 DN 300-Ⅱ-690EL0

DN 300-Ⅱ-6 90EL0

WN80-1500 RJSch4K=

WN 250(B)-25 RF S=rf SC Sch

WN 50(B)-16 RF S=3F0 RF

PL50B-16 FF.tm 5�����0S010rf671@°F1Ff@407.5 RJRF=TffRF5SC0RJ60R800S6560S300 RF 1700

SW50(A)-16 RF

bl300(B)-40RF5ERCH160-

wn200-900RF25R-11rf15/

PL125