Compared with hot rolled coil, cold rolled coil has bright surface and high smoothness, but it will produce more internal stress, so it is often annealed after cold rolling.
In the final production stage, the annealed cold-rolled coils are transported to coiling, skin-pass and straightening facilities, slitting or cutting machines, followed by inspection, packing and placing the annealed cold-rolled coils in the finished goods storage area to be shipped to customers.
Standard/Grade/Application | GB/T 20564.9 | BQB 418 |
Structural parts、strength member | CR550/980QP | HC600/980QP |
Q: Do you provide samples ? is it free or extra ?
A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.
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