... heat treatmentinside and outside the weld-track processingformingsizingeddy testinglaser testing diameterpicklingstorage 2 ... pipe( the surface level of steel plate decides steel surface brightness), random ... section steel to customers for use in construction, petrochemical refining, oil platforms, ... , Sudan, Kenya, Congo, Senegal, Angola, South Africa, Mexico, British.Supported by our holding company ...