Details Standard:API, BS, DIN Standard2:API 5L, BS EN10219, DIN EN 10305 Grade Group:10#-45#, 16Mn, Q195-Q345 Grade: 20#, 16Mn, Q235, Q345 Thickness:0.5 - 50 mm Section Shape:Rectangular Outer Diameter:10*10-1000*1000 Place of Origin:Tianjin, China (Mainland) Application:Structure Pipe Technique:ERW Certification:API Surface Treatment:Galvanized Special Pipe:API Pipe Alloy Or Not:Non-alloy Secondary Or Not: Non-secondary Name:steel pipes hollow section Type:Normalizing Treatment Material:Q235 Surface:PE Coated Color:Silver Length:1-12m Shape:Square. Rectangular Ends:Plain Ends Supply Ability:10000 Ton/Tons per Month rectangular pipes Packaging & Delivery Packaging Details standard package rectangular pipes. Port Tianjin port