Hebei Xingda Experimentation Instrument Co.,Ltd .Depend on head office's technology and authority.our produce high quality.We acquired ISO 9001 quality manage system certificate in 2000.we will offer the best credit standing and service to the dealer.we select low price in the same industry with the importer.so if we can cooperate with each other,you can have the minimum price and meet earn more renuneration.we are also prepared to accept orders for goods with customer's own trade marks of brand names.we can make special products if importer have other demands.our company have many OEM trade parter in USA,Europe and Africa.we warmly welcome domestic and foreign customers to order our products.