Ningbo Diamond Metal Products Co., Ltd. (Ningbo Chengyi Stainless Steel Standards Parts Manufacture Co., Ltd. ) was set up March 17, 2003 with an investment of more than 20 million RMB, covering an area of more than 10, 100 square meters, in which more than 3, 500 square meters--the first period of factory area has been put into use and second period of mare than 6, 600 square meters is under construction. Moreover, company specializes in producing and distributing stainless steel fasteners and it's a professional and integrative enterprise combining science researching production and management as a whole.

Company enjoys full set of stainless steel fasteners producing equipment (imported from Taiwai) and full set of professional testing equipment. As for stainless material (such as SUS316, S316L, S304HQ, S304M, S302 and etc), company purchases from abroad and national large-scale factories. Main products include all kinds of standards parts_national standard (GB), German Standard (DIN), American Standard (ANSI), Japanese Standard (JIS), British Standard (BS) and other International Standards, variety of non-standard parts---heads, tooth-line ant etc.