GB/T 12459  同心异径管 DN 80×65-Ⅱ-4RCcR& 400

DN 80×65-Ⅱ-4 RCcR& 400

LWN 50-150 RF B=38

2 C6-20.RC161

WN500-300RF-SS51255=5 B)-16 RF08r2@RF@4 RJ-R

BL200-100RF080Nampamp

5 FF 2200-0.252

SO 1"-150 RF Sch40 rf-0

WN 25(B)-40 G/FMF

WN 15(B)-100 RFh43806�.5 RJ0Fb184�SF�RF

WN100-150 RF Sc