The products reasonable structure, convenient installation and maintenance, surface easy to clean, dust and difficult to plot, even the box is 6540 steel, oval tube riser by 2550, both sides of the lap, the middle plug.
With box and risers within the laser welding, special balance of structure, lap strength, head using hot-melt technology, welding head around more than 5mm thickness Boulevard.
Product overlap aperture large, water resistance, easy to plug, even the box and take over use of high quality low carbon cold-rolled steel, thickness 1.8-2.5mm, without stretching, distortion, the results do not change the internal material, uniform thickness high pressure capability.
Widely used in electric power, coal, aviation, chemical and other industrial and mining enterprises and civil use.