Hangzhou Spring Washer Co., Ltd. is recognized as one of the largest and longest established manufacturers of spring washers in China, and in the world as well. Over the past decades, its brand HANGTAN has fully supported and deeply trusted by its clients, and its products have been supplied extensively over China domestic market and other countries and areas such as North America, Europe and Japan, etc. Now its products have been widely used by Dongfeng Automobile, China National Heavy Duty Truck Group, China Railway Group, Xiamen XGM Machinery, Shifeng Group, CHONCHE Group from China, and GE and AREA from USA etc.
The company continually makes efforts to explore and develop on the way to technological innovation and products creation. In respect of technological innovation, the company cooperated with TOKUHATSU Corporation of Japan in 1990’s by introducing their technology and equipment, which has brought technology revolution to the spring washer industry in China. Ever since then, the company has always been the leading manufacturer of spring washers in China. Starting from the year 2002, the company has co-operated with Nissei Seiko Co., ltd. Japan, who is specialized in manufacturing 12.9 high tension bolts. The Sino-Japan two competent parties jointly manufactured series of hinge tension hex bolts, and in 2004 founded a new company, Zhejiang Rising Fasteners Co. LTD. to dedicate to production of high tension bolts.
spring washer, Split washer