... U Bolt 1.Material:Carbon Steel 2.Standard:GB,ADSI,DIN,JIS,SP,ISO 3.Welcom:OEM Carbon Steeel Q235 U Bolt Welcome ... in construction place and in other places.1.Material:Stainless steel,carbon steel,Brass, Alloy,etc.2.Surface:Galvanied,Dacromet Zinc,HDG,Mechanical ... : 3-20mm4.Standard:GB,ADSI,DIN,JIS,SP,ISO, High quality Carbon Steeel Q235 U Bolt