Stainless Steel Expansion Screw的意思|示意

Fixed frame: 304 stainless steel, fixed to lab roof with M12 expansion screw.

固定架：304不锈钢材质，用m 12膨胀螺钉固定于实验室屋顶。

Stainless steel screw, hex bolt series: tighten screw, machine screw, nail screw, self-tapping screw, expansion bolts, carriage, lifting eyebolt, a tooth, flat mat, play split cotters cushion etc.

不锈钢螺丝系列：内六角螺栓，紧钉螺钉，机螺钉，自攻钉，马车螺丝，膨胀螺丝，吊环螺丝，牙条，开口销，平垫，弹垫等。