... have the API(API5L, API5CT) and ISO Certificates .Used for oil pipeline, oil natural gas, gas, water ... We have the API(API5L, API5CT) and ISO Certificates .Used for oil pipeline, oil natural gas, gas, water ... APIUsageUsed For Liquid Or Structure PIPE SurfaceBared , copper coated , Galvanized Or With OiledInspectionWith Hydraulic Testing, Eddy Current , Infrared TestSection ...