GB/T 12459  异径三通 DN 150×150×20-Sch40STRS/6/4F 27/800-6.40990 S=14/ R

DN 20×20×150-Sch40S TRS/6/4F 27/800-6.40990 S=14/ R

WN 15(B)-160 RF S=6.35vo0 h=156 RF1 C=2

PL 100-16 RF40-41.6cadM B=F6/500h406R1208-1906 B=FFF

LJ 24"-150 RF00 S=4RF076468.3 RF9B=66.5150rf7300F5345 n=8Fm

WN50(A)-25 FM65â¶兰

BL400-100Gm=1

W