1、 The bottom nut can be made into three types: M8+M10(length is 17mm)/M8/M10.
2、 The bottom welding joint is firm and there is no welding flash.
3、 Rubber has the function of sealing and protecting the pipe.
4、 Steel strips can have reinforcing ribs .
5、 The screws on both sides of iron material and steel material are different.






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