Founded in 1965, Yu Yao No. 4 Instrument Factory is a leading manufacturer of solenoid valves and has enjoyed an excellent reputation through the past 40 years in China. She has integrated the functions if science and technology, research and design, production and sales, maintenance and consulting. The main products are all kinds of fluid-control solenoid valves, and have 40 series. Now most of them are exported to USA, Europe, Middle East, and South Asia, etc.
You can get the assurance of quality and reliability when you select Round Star Solenoids. Many of these have been developed from our basic range to meet the specific requirements of many customers.
Our talented team of Designers and Development Engineers take great pride in solving customer"s technical problems. They have the expertise and experience to introduce tailor made valves designed specifically to meet your particular solenoid valve needs. Comprehensive technical back-up facilities ensure that this is achieved with maximum speed and reliability.
Integrated into our efficient production facilities is a Quality Control System based on techniques including Statistical Process Control, Failure Mode and Effects Analysis, and Machine Process Capability Studies. Round Star Valves meet the quality standards essential to OEMs, with all procedures and standards complying with ISO 9002.
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