GB/T 12459  等径三通 DN 80-Ⅱ-4.5TS8=/ampamp

DN80II-4.5 TS8=/ampamp

WN 4"-300 RF Sch80S s=16S=3.5h40

WN65-1500RJca-1/�

SO125-16 FMpampa

WN 20-300 RF40S/-16 RFRFSJ150 rfgh4â�pampa

WN40-160G-150

BL500(B)-10RF HH6/M s=4RF HG90-150

BL25-150 RF Sch R0J)F

BL400-150 RF/h80°50-300

BL80-10 FF