First, the construction plan
Before the construction of heating cable electric heating, it is necessary to draw up a construction plan, such as material selection, power configuration, laying area determination and so on.
Second, the ground treatment
Before the electric heating construction, the height of the ground is set at the threshold, and then the floor heating is leveled to ensure that there is no unevenness. If there are water pipes or cables, the grounding should be buried in the ground to ensure that the construction conditions are met.
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
Hex Machine screw,pan machine screw,flat machine screw,truss machine screw,Hexagon socket screws
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