Black Steel Grating

Shuangyi,which is a professional steel grating manufacturer, provide high quality black steel grating for you.There are three kinds of surface treatment of steel grating: hot dip galvanizing, cold galvanizing, spray painting.
Characteristics of hot galvanizing on the surface treatment of steel grating:
1. Rust prevention and corrosion protection. After the production of the steel grating, the steel plate is black steel grating. After grinding, pickling and hot galvanizing, it can play the role of rust prevention and corrosion protection.

2. Long service life, the service life of hot galvanized steel grate is 50-60 years.
3. To reduce investment, the service life of hot-dip galvanized steel grating is greatly increased, thus reducing the replacement and virtually reducing the cost of the secondary purchase.

Characteristics of cold galvanizing on the surface treatment of steel lattice plate
1, "Cold plating" also called "electroplating", "electroplating", the zinc salt solution through electrolysis, so that iron ions and zinc ions are replaced to reflect, in general, it is not heated, the amount of zinc is very little, it is easy to rust in wet environment. But the price is cheaper than hot-dip galvanizing.

2, According to our years of experience, cold galvanized steel grating if used outside, when the rain will rust, in the wet environment, usually 2 to 3 months will rust. The antirust effect is very poor.

If you wantsteel grating, galvanized bar grating,steel walkway grating,contatc us.We are willing to provide you with more information. If you call +86-13273177087, we will be online for 24 hours. If you send us an email, we will reply you at the first time (within 24 hours).