adjustable clips : ISO9001-2000 Many times pass BV, SGS inspection All sizes ... steel ,45steel , 40Mn2, 20 Mn SiGrade: 4.6, 4.8,5.6,8.8Surface: Plain(Oiled) ,Black paint, Color paint ,Zinc ... 60Si2MnASurface:Plain(oil), Black paint, Color paint,Zinc,HDG,etc. 5.Clip bolt/T bolt/Rail bolt/ Clamp bolt/ Inserted bolt ... 40Mn2,20MnSi, 35CrMo, 40Cr,42CrMo.Grade:4.6,4.8,5.6,8.8,10.9,12.9Surface: Plain(oiled), Blck ...