GB/T 12459  异径三通 DN 550×550×100-Sch40STR6 /u00c3-2.5�´/1=ned=/

DN 100×100×550-Sch40S TR6 /u00c3-2.5�´/1=ned=/

WN200-900 RF RF�21

bl25-10rf c=F5

BL15(B)-160M0S00l221070-16/J

bl200-100 mf0 bh0H1RF SCRSch6RF16RRFSC-F40B

BL15-16T/u00c

BL 20-40 M8FR

BL100-150ff)-16 RF S=35.0å�5f S=2

wn900(b)-16fm500

SO 15-1