There are two section types of the pre-galvanized hollow pipes,the square hollow pipe and rectangular pipe. The size of the hollow pipe can reach 12x12-500mm, and the thickness of the pipe can reach 0.6-20mm. The material grade can reach Q195-Q235. The hollow pipes are bundle with steel strips. And

The corrguated metal sheets have so many usages. The corrguated metal sheets is suitable for regions, which usually have extreme temperatures. For its metallic properties, it can resist the extremely hot weather and maintain good condition in the low temperature. So it can be applied in many palces. Like the warehouses, barricading, manufacturing industries, shopping malls, commercial buildings and residential buildings. The corrguated metal sheets is made of the galvanised and it coated with a standard alkali wash coat. This special layer makes the excellent durability possible. Under the normal circumstances, the product can be used for nearly 40 years. It can avoid most unwanted damage. The coated layer would not easily be flaked off.

1. The cold and hot water outlets of the drainage pipes must be level, generally the left side is hot and the right side is cool, and the piping should be laid horizontally and straight. The layout should be safe and reasonable. The position of the pipe clamp and the slope of the pipe shall meet the requirements of the specification. All types of valves should be installed in the correct position and level for easy use and maintenance. 2. The water inlet should be equipped with an indoor main valve. Before installation, check whether the water pipes and connecting accessories are damaged or cracked. 3. The distance between the water meter and the valve from the wall should be appropriate, and it should be convenient for use and maintenance.

The galvanized pipes are widely used in oil transportation and construction，such as steel structure, buildings, guard rails, fences, metal furnitures and etc. Due to its zinc coated surface,the galvanized pipes are anti-corrosion. Here are 2 types of galvanizing: hot dip galvanizing and pre-galvanizing. Based on the enviroment of the product needs, you can choose your fittable product.

Your front door has more uses than you thought.As for your visitors, it would be your first impression that you leave to your visitors. As for the intruders, your steel entry door would be the safe guard between you and the danger. So it’s important to choose the door, which has good appearence and safety insurance.The residential steel door would be on top of your list, it is also known as the steel door panels.

Hot dip galvanized tubes are steel pipes obtained by hot-dip galvanizing on the surface of the steel pipe. Hot dip galvanizing is the process of coating iron, steel or ferrous metal with a layer of zinc.