Yih Shan Precision Co., Ltd. was established by Mr. Fong-Yi Yu in 1980. Manufacturing parts with lathe. In these years, our business expand depends on our technique upgrade, training and facilities augmentation. Good quality and in the delivery, customers in domestic and overseas have been giving Yih Shan very good appreiation. "pursue Perfctionist is to Customer&＃039;s Satisfactorily" is our competition in field, we established process with customers&＃039; materials factory RAM YIH Metal Product Factory in Shen Zhen of China 1999, and became proprietorship--Yih Shan Precision Enterprise (Shen Zhen) Co., Ltd in 2004. For better competitiveness, all plants are QS9000 and ISO9001: 2000 certified. RAM YIH is runing for ISO/TS16949: 2002 now to take for satisfaction for satisfactory to customers and aim the continuous business of the companv. To accommodate ourselves to eastern China market&＃039;s demand, we established Yih Shan Precise Metal Electronics(Kun Shan) Co., Ltd in Kun Shan of China December 2003, the products-precise metal electronics are better and cheaper for more customers&＃039; requirements