Specification:

Material: SPCC SPCD SPCCDT ST13 BLC BLD CR1 CR2 ST37-2 08AL 08YU DC01 DC02 DC03

Thickness: 0.2-4mm

Thickness tolerance:  0.25%

Width: 600-2000mm

Surface treatment: Bright annealing, black annealing as your need

Surface structure: Zero spangle / minimized spangle / regular spangle/ big spangle

Type of coating: Hot dipped galvanized or electric galvanized

Zinc coating: Z60-275g/m2

ID coil: 508mm or 610mm

Coil weight: 3-8 MT per coil

Application: Industrial panels, roofing and siding for painting

Features of Cold Rolled Coil: 1) cold rolled steel coil is manufactured to have a long durability, strong corrosion resistance and shiny surface. 2) cold rolled steel coil features excellent forming properties, paintability, weldability, and is suitable for fabrication by forming, pressing and bending.

Process of Cold Rolled Coil:
Pickling: To clean the dust and rust points on the surface.
Cold Rolling: Digital rolling control system produces minimum thickness tolerance, helps to prevent twist and improve straightness.
Slitting: Precise slitting machinery helps control the best width tolerance and avoid camber or cracker.

Also we can make round or sharp edge with additional process and special machines.
Heat treatment: Advanced annealing, tempering and hardening techniques will help to produce proper mechanical property of the products to insure our client's usage with minimum harm to natural environment.