GB/T 12459  同心异径管 DN 600×450-Ⅱ-Sch40SRC

DN 600×450-Ⅱ-Sch40S RC

BL 100-16 RF

PL 150(B)-16 RF

WN100(B)-300 RF

WN 25(B)-100 G S=3

WN 450-10 RF S=≥8

PL500-16RJF1-0.2¬Â¢Ã£Â¥Ã¢âRJ-330480Sch

wn600-600 rf b=575�

LWN 2"-2500 RJ Sch40S

WN250-150FM/�10- H6213516 RFtmlr10 C=0/н�