Galvanized steel pipe Outer ID: 20mm-219mm Wall thickness: 0.8mm-8mm high ... high-quality professional management and technical talents.Specification: Product nameGalvanized steel pipeSteel gradeQ195,Q215 ,Q235,Q345Wall Thickness 0.8-8mmOuter ... the quantityStock Yes StandardASTM-A53A, BS1387-1985, GB/T3091-2001Applicationoil pipe, gas pipe, fluid pipe, hydraulic pipe etc.Factory Galvanized steel pipe