Install the sealing washer, flat washer and nut as described in the Floor.

如同在底板固定一节里所记述的那样，安装密封垫圈，平面垫圈及螺。

Our company Specially offer Threaded Rod and Flat Washer, also together with Nut.

我们公司主要生产牙条，垫圈，还有螺母。