Top Plate Conforms to ASTM A936 for Hot Rolled Carbon Steel, Corrison Protection Conforms to ASTM A153 Standard, Specification for Hot-dipped Zinc Coating, Pipe Weld 90 Degrees to Plate, Pipe material to be C1020 . Type 1 : 8"x8"x1/2" Steel Plate, 2 3/8"OD x1/8" wall x5" Length. Type 2 : 200x200x8mm Base Plate, 102 OD x4x100mm short pipe, 80x39x5mm Tringle Supporter. Type 3: φ240mm x10mmSteel Plate, 109mmOD x9.5mm wall x220mm Length. Type 4: φ240mm x 10mm round plate, 100mm x 100mm x 10mm wall x200mm length square tube, 120mm x 120mm x 10mm thickness square plate, φ109mm x 9.5mmwall x 220mm length, Surface: Hot-dipped galvanized, plain or others. Type 5: 200mm x 200mm x 8mm or 10mm, 12mm top steel plate, ...