FIGHT-FITTING SCREW 紧定螺钉

tight fitting screw 紧合螺钉

screw fitting 螺旋接头 ; 管接头

screw together fitting 螺纹整壳式接头

screw-together fitting 整壳式接头

Screw Fitting Disc Holders 快速换装式砂片托盘

Quick Change Screw Fitting Discs 氧化铝快速换装式砂片

screw steel pipe fitting 螺纹钢管接头