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GB/T 700-2006 Carbon structural steel, 45# in GB/T 699 Q235, 195, 215, 255, 275 in GB/T700.

We will design products on customers' time and customize some product designs ...

Of course, our business covers the whole country and even the world.

Due to the epidemic situation, we will participate in the promotion of our products if the ...

Yes.

We can help consult the professional installation team, for now we have no installation ...