GB/T 12459  弯头 DN 80-Ⅱ-545E3D

DN 80-Ⅱ-5 45E3D

wn25-63rfFf/0Sa080/dat

BI 1000J Sch60/M901.ºÅ¾Ã¥ÂB/920

WN 20(a)-40RF5 RRS=4blT/ rfF

PL2000B-2.5FF80 FMM0/

WN 400(B)-150 RF

PL 250-16RF BNRFS=7MRFfF(A)

PL32-25T0R=60CRM�S

PL20-16 RF.pampampampam16rfFM05RF b=-10(b)- s=14/F/

pL