PPGI Zinc Coated Color Corrugated Steel Roofing Sheet for Building

Our destination is 'You come here with difficulty and we supply you with a smile to take away' for Color Coated Galvanized Steel Corrugated Sheet, Galvanneal Sheet Metal, PPGI Galvanized Roofing Corrugated Sheet. Our company continues to carry out staff training with scientific guidance. Our company's various products are famous for their perfect details, which can meet the needs of domestic and foreign markets at the same time. We have a relatively complete production, testing and quality control system to meet the different needs of customers to ensure the service life of the products. Our company adheres to continuous innovation, keeps pace with the world's advanced technology and meets the needs of different users through continuous improvement.

GL/GC sheet have excellent corrosion resistance, print-ability and workability. The De-greasing Section helps the removal of oil and dirt by a cascaded process of hot alkaline de-greasing, cold rising, hot rising and hot air drying. Then annealing is done in an electrically heated horizontal furnace operated under a protective atmosphere with a calibrated ratio of nitrogen and hydrogen generated in a state–of–the–art automated Protective Gas Plant using ammonia and air as primary raw materials.

Immersing it in a zinc bath maintained at 460 degree centigrade carries out hot dip galvanizing of the strip. The chemistry of the bath is carefully controlled to ensure proper adhesion and formability of the applied zinc together with bright blemish free uniform spangles.The galvanized coils are chromated to improve its resistance to white rust. The chromating parameters are continually monitored and sheets are regularly tested through salt-spray tests to ensure the performance of this process.
We can also provide galvanized plain and corrugated sheets with required length. Galvanized corrugated sheet can be produced with closed tolerance of standard depth, pitch and width.

Corrugated metal starts with carbon steel sheet which is then pressed into three-dimensional patterns, called corrugations, using a series of rollers in a cold roll forming process. Different roller die arrangements produce different types of corrugation,including waves, squares and angles. Cold rolling allows a thicker and stronger product that also presents a better appearance than hot-formed steel. Finished sheet is then sheared off to the desired length.

That has a positive and progressive attitude to customer's interest, our organization consistently improves our products quality to satisfy the demands of shoppers and further focuses on safety, reliability, environmental specifications, and innovation of PPGI Zinc Coated Color Corrugated Steel Roofing Sheet for Building. Our company will continue to strive for continuous improvement of product quality. In the future, our company will be committed to promoting the development of the industry, and gradually develop towards a comprehensive and international direction.