Service & Technical Help

Nowadays, more and more reputed companies compete in a long-term cooperation with us. That's why we can provide our customers with the best quality products, the best price, and the best service.

We abide by the principles of honesty, credibility, and mutual-benefit, and do our best to serve clients and customers both at home and abroad. With our top-notch professional knowledge and trading experience, we have seen our market development ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you to facility your company's foreign market development and China market expansion. Let's build a great future together!

If you buy our fastener making machinery equipment, we can provide you with the above services of hot forging & cold forming, heat treatment, thread rolling, inspection and storage.

Harbin Rainbow Technology Co., Ltd. provides after-sales support to ensure customer satisfaction after customer purchase. The company provides technical guidance and support for the installation and maintenance of products. When there is a problem, the company's after-sales service team responds in time to provide solutions to ensure customer satisfaction.

Harbin Rainbow Technology Co., Ltd. provides one year of equipment warranty, in the use of equipment within a year of quality problems, our company will be dedicated to provide customers with the best quality after-sales service, the first time to professional technology for customers to solve the problem.

Harbin Rainbow Technology Co., Ltd. products are sold all over the world by air, sea, express, and other modes of transportation. The company has established partnerships with reliable shipping companies to ensure timely delivery of its products. Shipping costs and delivery times for products vary depending on the mode of transportation, destination, and product ordered, including specialized machinery such as the screw sorting machine for sale, super fine wire drawing machine, and spring washer making machine.