Set up in April 2010, Topper (China Ball Valve Manufacturer Co., Ltd.) stands as an innovative leader in valve manufacturing with a core focus on valve research and development. Occupying a factory area exceeding 120,000 ㎡, we manufacture a full spectrum of valve products: ball, gate, globe, check, butterfly, forged, plug valves as well as strainers.
We have dedicated ourselves to premium customer service for 22 years running. Every valve we produce adheres to strict global standards like API 6D, BS 5351, ASME B16.34 and DIN 3202, alongside our accredited ISO 9001, ISO 14001 and ISO 45001 management systems.
Equipped with powerful design expertise, cutting-edge processing and testing machinery, and a devoted professional team, we deliver reliable, high-quality valves with on-time delivery. Our solutions serve worldwide industries ranging from petrochemicals, power, steel and shipbuilding to water treatment.
361000
Founded in 1993, Onero, officially known as China Zhejiang One Valve Co., Ltd., is recognized as a leading manufacturer in the valve industry. Known for innovation, high-quality products, and outstanding customer service, Onero provides end-to-end solutions, covering research and development, manufacturing, and worldwide sales. The company’s dedication to integrity and clear communication supports its growth on a global scale, ensuring reliable industrial pipeline systems.
Onero’s broad product range features ball, gate, check, and globe valves, as well as Y-strainers, all compliant with standards such as API, JIS, BS, and DIN. With over 20 years of experience, the company combines competitive pricing with tailored certifications, offering high-quality products.
By collaborating with top raw material suppliers, Onero enhances production efficiency and provides both OEM and ODM services. With strict quality control measures in place, Onero continues to welcome new partnerships, committed to driving progress in the valve industry.
325000