昆山市三建模具机械有限公司创建于1996年，是一家研发生产电冰箱模具(电冰箱门、箱真空成型吸塑模、冲孔切边模、发泡内外夹具、冲压模具)产品并提供成套专业化控制解决方案的企业。

 公司位于昆山市经济技术开发区石牌工业配套区，交通便利。公司占地面积3.3万平方米，建筑面积1.2万余平方米，固定资产达5000万元。公司已通过ISO 9001:2008认证。
 公司现有员工120人，各类专业技术人员35人。拥有苏州市级企业技术中心和省级工程技术研究中心，拥有优良的专业化研发团队和自主知识产权。
 公司拥有完善的销售网络，产品80%以上出口，销往全球10多个国家和地区。主要客户品牌如三星、松下、日立、东芝、夏普、三菱、三洋、星崎、LG、伊莱克斯、惠而浦等。
 公司旗下拥有苏州名牌 SANJ；
三建模具，现已成为电冰箱模具专业化研发、制造解决方案供应商。

　　Located in Shipai Industrial Park of Kunshan Economy and Technology Development Zone. Kunshan Sanjian Mould Machindry CO.,Ltd.(Kunshan Sanyuan PrecisionMachinery Co., Ltd.,a Sino-Japanese joint venture)is specializing in designing and manufacturing moulds for refrigerator, such as thermoforming mould, punching and die-cut mould, foaming inner and outer jigs, and other varieties of nonstandard precision moulds.
　　Our company occupies over 14,000 sq. meters with 150 employees including 25 technicians and is rich in designing and research development. Its registered capital is 1,700,000USD and its fixed assets 50,000,000RMB. It has advanced equipments for production and inspection, mainly involving kinds of automatic program-controlled machine of OKK and SIEMENS Type, 20 sets of NC milling machine, a precise NC cut-machine (CHARMIL, LES, Switzerland ),10 sets of NC milling discharging machine, and dozen of other machines. Inspection equipment includes P5H3D 10FT 1-300 projector, CV-524 profilograph, F604 triple-coordinate measuring instrument etc. Besides it has advanced professional tools for processing and equipment for testing mould. Utilizing CAD and CAM technology, it sets up its own computer net system for designing, R&D and processing of products, resulting in its superiority among the same manufacturers.
　　Is has good reputation in a large number of customers domestically and internationally with its products of prompt developing, rational design, advanced technique, stability & reliability and long service life. Besides continuously providing good service for domestic customers, it is developing overseas market, In recent years, its products of mould for refrigerator have been entered some multinational companies and their overseas companies, such as TOSHIBA, HTACHI, MITSUBISHI, SHARP of Japan, SAMSUNG of Korea. It has become a matching company of HITACHI for manufacturing the moulds of refrigerator.
　　It gained ISO9001 quality system certification in 1999 and was awarded as Jiangsu Provincial Hi-tech Enterprise in 2002. Taking quality as the life of our company, it is focusing on providing high quality products and excellent service for customers to meet the needs of the market.