Jinrui has an independent quality management department with a good quality management system.The company has passed ISO9001:2008 international quality system certification in 2001 and TS/16949 automobile quality control system in 2012.We have prodcued many products used on cars,Website:http://www.chinajinrui.net,bus or some else automobiles.Also we produce according to clients' drawings. 1) Grade:Ordinary 8.8, 10.9,12.9(Or as required)   2) Material:40Cr, 10B21,42Crmo, 35CrMo.etc 3) Finishing:Black Oxide, Zinc Plated, Phosphate,Dacromet,ect. 4) Packing:Neutral export carton box.(Or as required) 5) Metric and Imperial dimension are all available.