The quality assurance system was established according to domestic standard GB8716-88,German standard DIN 1695 81,and ISO9001,The products are rewarded EXCELLENT PRODUCTS CERTIFICATION by the Provincial Township Enterprises Management Committee,Qualification Certification by the Provincial Economical and Trading committee and Provincial Quality Control Association,Qualification Certification by the Provincial Supervisory and Authorization institute,and industrial Enterprise Grade 4 Certification by the Provincial standard Bureau.Large quantities of products are exported to Italy,the USA and European Union.