With China ERW mill put into production continually,the application of numerical control and profile modeling saw flake for welded pipe become wider and wider,which mostly imported from Germany,American and Japan.

• 随着我国大规格ERW焊管机组的不断建成投产,钢管数控仿形锯机及仿形锯片的应用越来越多,目前主要从德、美、日等国进口。