Check if the profile is 6 meters long, if there is obvious distortion, the distortion can not be used, because in the cast aluminum window, the type of material is to be d ...
The welding points between the components in the welding process shall be firm, the welds shall be sufficient, the welding waves on the surface of the weld shall be unifor ...
Roads are the equipment we often see on the road, but what issues we need to pay attention to in designing and making. Today, the manufacturer will introduce to you what y ...
What is the height of zinc steel? When we buy a house decoration, we have a lot of difficult questions to think about, but we still cant forget that the home is a safe hav ...
Some special community guardrails are also V-shaped above the column, so that the upper end is combined with the barbed wire. 1. The mastery of the spray technology of the ...
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