Wanzhi Steel

Sandwich PUF panel is the most forward-looking building material for energy saving, heat preservation, environmental protection, and artistic fashion in modern society. It is widely used in our daily life, including warehouse buildings, sports facilities, food processing workshops, shopping malls, etc. More than that, it is lightweight, waterproof, fire-resistant, and easy to install, becoming to be a cost-effective solution for your various building projects. To get more information about this PUF sandwich panel, continue to read now! What Is PUF Sandwich Panel? Polyurethane Foam (PUF) sandwich panel, is also known as an anti-leakage steel sandwich panel, steel composite panel, and PU panel. It is a construction product used to clad the walls and roofs of buildings. A sandwich PUF panel is a steel sheet generally constructed with one layer of PUF material core and two pieces of metal sheets. And these sheets can be replaced by GI, GL, PPGI, PPGL, or SS iron sheets according to differ

Galvanized iron sheet (GI sheet) is one of the most used steel materials in the world for homes, businesses, buildings, industries, automobiles, and so on. It is steel that has been coated with zinc to prevent corrosion and prolong service life. According to the different classification standards, there truly exist different types of galvanized iron sheets . Let’s have a review of them now! Manufacturing Method It is the most commonly used criterion of GI sheets. Due to the different galvanizing processes, it can be divided into hot-dipped galvanized sheets and electro-galvanized sheets. Hot Dipped Galvanized Sheet (HDG Sheet) HDG steel sheet is mainly produced by the continuous hot-dip galvanizing process. That is, the steel will be put into the molten zinc bath at temperatures of 500 degrees to form a close alloy film. This process provides a thicker zinc coating, about 30-275 g/m2, and can freeze into crystallized zinc spangles. Uses Mainly used in outdoor and harsh environments, in