Our philosophy of customer-oriented service and forward thinking is what guides us, Experience and our strive for innovation is what drives us, And our commitment to hight quality products and professional integrity is why our customers depend on us.

Situated along the Pearl River Delta in the cities of Guangzhou and Dongguan, The People’s Republic of China, our manufacturing facilities have enjoyed the benefits of a rapidly growing environment since 1991. By combining the area’s comprehensive infrastructure with low labour costs, skilled personnel and effective management techniques, we at Kowloon Metal Spring and Rainbow Metal Spring are able to produce hight quality and cost competitive products. Founded in Hong Kong in 1970, we have over 35 years of experience in the spring manufacturing industry. Over the years our range of professional services has grown to include design, manufacturing, and quality assurance.

Our springs, precision stampings, screws, and shafts can be found in products all over the world.

Our clientele consists of world renown companies such as Honda, Toyota Automotives, Philips, Panasonic Electronices, Shick Razors and Mattel Toys. Our commitment to quality ensures that we purchase only the finest raw materials, preeminent manufacturing machinery, and top notch quality assurance equipment sourced from around the world.

In the near future we intend on aggressively increasing our product range to suit the automobile industry.

Currently we produce the wireframe for automobile seats and safety critical wireforms inthe automobile seat headrests.