GB/T 12459  偏心异径管 DN 25×15-Ⅱ-6RE

DN 25×15-Ⅱ-6 RE

WN25B-100FM

BL 1"-150 RF

SO 100(B)-10 RF

SO 15(B)-16 RFn0.6°b

wn50-16rfs5

DN700-PN6 PL RF Ⅱ

WN150-150 RF sch80S16050-15B6 RF

LWN 80-600RF B=77.9

BL 200-10 RF00-158/u05600/6rf HG/T155mpF&@�8F Sch40Sch80S b=3 aa=750.6)-6M