Shanghai Qiyi Electrical & Mechanical Equipment Co., Ltd. Is a professional rotary encoder supplier, located in Chinese business and port center, Shanghai. CALT brand product ranges: Optical incremental rotary encoder, single-turn and multi-turn absolute encoder, draw-wire position sensor and couplings, and other instruments, which widely used in CNC machinery, textile machinery, steel rolling machinery, linear guide system, hydraulic system, lifting machinery and servo motor, all get a very good reputation!
The founder of ShangKun Industrial Technology Co., Ltd started to step into the industrial hardware field in 2004, mainly serving as agent supplying hardware parts to Europe, the USA and Japan. Back at the time, China's economy was becoming stronger and stronger, which increased the demand from equipment manufacturing. However, China's private sector basically was only in the period of starting. It was hard to find a whole solution for supply in domestic, both for the lack of the humanized design of the hardware parts and of the ability to meet security requirements. Therefore most of the companies chose to use the goods from abroad. Since the heavy rely on foreign products, there emerged a lot of requirements no matter for using or selling them, which imposed some obstacles on the development and the value improvement of the equipment industry.
SYM HOIST & TOWER CRANE QUIPMENT Co., Ltd located in Shenyang China is one of the biggest supplier and export of tower crane, luffing crane, topless crane, passenger hoist along with the spare parts for them. With 20 years' experience on tower crane rent, installation, repair and reconstruction, the company has more than 50 experienced mechanical and electrical engineer responsible for the installation guide, failure diagnosis, maintainance and reconstruction for the tower crane at the construction site.