Dongyi is an international company specialized in developing and producing all kinds of electronic

Haida established in 2004 in Dongguan City, where is the "silicon valley" of world manufacturing industry. It is a certified national high-tech enterprise engaged in design, research and development, production, sales, calibration and after-sale service of test equipment, such as paper&packaging test equipment, Furniture test equipment, material mechanics test equipment, optical measurement equipment, environmental reliability testing equipment etc. With the persistent efforts of all staff, Haida owned 4 factories with total 60, 000 square meters, 15 branch offices covers South China, North China, East China, Central China and Northwest China, as well over 20 overseas after-sales service sites covers Southeast Asia, Europe, North America and the Middle East with over 28, 000 customers.

Shenzhen Senmu Metal Products Co., Ltd., a joint company of LM INTERNATIONAL LIMITED (3W. Lmledintl-COM, With LED lighting as main business), established in 2011, is located in the Special Economic Zone of Shenzhen, it's covering 2500 square meters, with staff of 60 well-trained employees, who won praise from majority of customers for their professionalism and quality management. We specialized in CNC machining while also organizing die casting, punching& stamping and other related services for metal products which used in areas of electronics, medical equipment, lighting, automotive, toys, etc. The environmental-friendly metal materials can be Stainless steel, brass, copper, aluminum, carbon steel, alloy steel etc. With surface finishes options of electroplating, electrophoresis, galvanizing, black oxide coating, painting, powdering, rust preventive oil, electroplating, anodizing, laser engraving etc. In 2019, we invested one of biggest painting lines in Shenzhen. Our famous customers including HUAWEI, BYD, KINGSUN, HL, KWT, etc., and exported to countries across the world including Japan, USA and Europe, etc.