GB/T 12459  弯头 DN 200-1090EL

DN 200-10 90EL

bl100-150 rf s=4.5RF-16

WN25-25 RF S=4.503000(b)-6FMRF S5k

BL 80-300 RF Sch40SFSC/t94-215FM S=8rF40s/S

AXA-3.6h(2.5/73-160.25mpampamp

WN50-300 RF Sch10w00 RF00RF00-12R

WN80-25RF5 rf s30408Ft(B16R40sf2.5/

WN400-300GS=ch1

SO15B-10G20RF