Shenzhen factory direct high quality wrought iron gate price is negotiable

Iron gates characteristics: First, high-grade materials and technology: 1, Material: GB Q-235A grade steel. Ordinary carbon steel - General Board is a steel material. Q represents the yield of this material, behind the 235, the yield refers to the value of this material at about 235. And will increase the thickness of the material and its yield value decreases. Q235A, Q235B, Q235C, Q235D. This is a class distinction represents mainly the impact of temperature differs from mine! 2, the welding process: the use of carbon dioxide gas shielded arc welding. (Uniform solder joints, strong airtight performance, solidity good) welding. 3. Surface treatment: hot dip galvanizing process are used outdoors two mid-range materials and technology: 1. Material: Non-standard Q-220B grade steel. 2, the welding process: using manual welding techniques. 3. Surface treatment: cold galvanized or not galvanized. Paint: adopt Tianjin, Wuxi and other regions in the production of paint lighthouse.