... workshop• Price• Country of Origin• Quality Approvals• Form E/F/A/B;CO;FTA,ETC • Country of Origin• Guarantee/Warranty• Good ... center and less than 2 complaint cases . 2, material of steel type of 15#,20#,25#,30#.35#,40#,45#,46 ... processing on giving materials. 5, excellent heat treatment. hot rolled steel sheet