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galvanizing iron sheet for roofing /roofing sheet for shed / raw material for corrugated roofing sheet

what is raw materials for corrugated matel iron steel sheet? how to make it ?

the Raw materials for corrugated steel sheet include three kinds as below:

1) galvanized steel zinc coating from 40g/m2 to 180g/m2

2) galvalume steel( Aluzinc steel) AZ30 to AZ150

3) prepainted steel ( color coated steel)

top side 18-25micro; back side 5-10micro

color: top side can be made as RAL Code

produce process:

step 1). cold rolled steel coil

step2).galvanized steel coil or galvalumed steel coil

step 3). prepainted steel coil

step 4). cuting steel coil into steel sheet

step 5). rolling steel sheet in to corrugated sheet

what is mainly specification for corrugated iron sheet ??

Our products are widely used in such fields as construction, transportation, chemical engineering,

household appliance, lighting and building materials,having a promising market prospect.Till now,we have supplied quality products to customers in West Europe, South America,the Middle East and Africia.

1. Specification

2. Product features

a) .The most popular feature of this roofing material is its durability. These roofing sheets can easily last for about 5 to 7 years.

b). Corrugated metal roofing sheets are treated and coated with chemicals to prevent the growth of algae and mildew. They are also resistant to rot, rust and insects.

c). Other beneficial features include its non-combustible nature. These sheets have a Class A fire rating, which is the highest rating as far as fire-resistance is concerned.

d). They are also lightweight, which facilitates easy installation and reduction of load on the roof structure.

3. Packing details

Each package is about 2.5~3.5MT, about 20sheets per bundle, steel frame base, steel package with iron package belt.