Hangzhou HengQiu spring Washer Co.,Ltd．Was built in 1990 . It lies beside No.6 Qiantang Bridge to the south of Qiantang River . It's about 3kms away from Xiaoshan International Airport . our company is a modern one which speciatily studies ang produces all kinds of spring washers ．Weassume Japanese advanced equipments and technologies , with a group of high quality engineers and technicians . TO meet the needs of our users , we have had strict quality managing systems and good service . our products have been sold to all over China , to the Middle East Europe , and America and Southeart Asia and so on . 　　 We mainly produce the USA standard spring washers : Models with "AMSI' AMSE 'B18'21一1 ; sta ndards with ' No.4一2 " , . 　　Germany standard spring washers : Models with " DIN127B , DIN7980 , " standards with "M3一M52 , DIN128B , DIN6905 , , ; standardswith " M3一M20 " . 　　 The British standard spring washers : BS1802 , l/8 一1 1/2 Japanese standard spring washers : JIS一2 , standards with " M2 一M36 " . China Standard spring washers : Types with " GB93 一76 , GB93 一87 , standards with " M3 一M64 , GB7244 一87 heavy 一duty spring washers , standards with " M6 一M48 , and GB7245 saddle models , GB7246 wave models , GB9074 combined washers . We also produce all kinds of no 一standard and stainless steed and tin copper washers . 　　 " Heng Qiu " will go on developing and studying tighted and fixed elements . In the fierce co m petitions , we will improue our quality , perfect our services to be the best enterprises ．We will have the animus of " Honest first , unity and win both " . we will sincerely cooperate with the users all over the world and warmly welcom your coming with the finest quality , the most reasonable price and the best Service.