Basic Info Model NO: ASTM F436 Type: Flat Material: 45#Carbon Steel Standard: ASTM F436 Additional Info Trademark: M Packing: 25kgs Per Box, 36 Boxes Per Pallet. Origin: Ningbo China HS Code: 73182200 Export Markets : USA, Canada, Brazil, U. K., France, Germany, Spain, Italy, Switzerland, Dubai, Singapore, Malaysia, Japan, Korea. Etc. Product Description 1) Size: 3/8"-4" 2) Material: Carbon steel, 3) Surfaces: Black, zinc plated, H. D. G etc 4) Packaging: 25kg per box, 36 boxes per pallet