... with QC/T504-1999 standards. Quality by ISO9001, TS16949 international quality system certifications.) We owns factory area 5,000 square meters , ... of 8,000,000 sets. The product have reached international advanced technical standard,now compatible with the motorcycle manufacturer, ... Chongqin Zhongshen Motor,Lifan Motor and so on, .Quality system certificates ISO9001:2000 have been passed in 2007. the ...