GBK pipe means common annealing without anti-oxidation protection.
We are able to supply high quality cold drawn seamless GBK pipes produced according to the DIN2445 and then annealed without anti-oxidation annealing – pipe annealing in high temperature to get proper metal structure without antioxidation extra protective gas atmosphere inside the furnice.
You need to remember that beacuse we are using “protective gas atmosphere” to produce NBK pipes that proces is slightly more expensive then when GBK pipes or BK pipes, but you recive high quality product.
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