HT11

Beijing Zhonghanghua Safety Valve Sales Co. Ltd. or known as HT11 founded in 1998 in China. We focus on selling safety valves and pressure relief valves. Our products come from aerospace technology. Quality and service are our main values.

We make safety valves, pilot‑operated valves, recirculation valves, and vacuum relief valves. These protect pipelines, pumps, and industrial systems. We design them for reliability and performance. Safety is always our priority.

Our valves are used in China and exported worldwide. Projects in the USA, Germany, and Canada trust our products. We are known for good performance and durability. Customers rely on us for critical systems and that's why we are a trusted valve supplier.

Beijing Zehua Chemical Engineering Co. Ltd. or ZEHUA CHEM was founded in 1995 in Beijing, China. It is a Sino‑US joint venture under Tsinghua Holdings. The company is based in a national high‑tech industrial park. Its focus is chemical engineering and gas separation technology.

The company designs process systems, column internals, and gas recovery units. Its technology helps refineries and petrochemical plants improve efficiency. It also revamps old systems to boost performance. Quality and innovation are the company’s main drivers.

Zehua has branches in Shanghai, Guangzhou, Zibo, and Jiaxing. It operates subsidiaries such as AMT International Inc. (USA). It also owns factories in Fushun and Ningbo. Its reach extends across China and internationally.

Most of Zehua’s staff are engineers and technical experts. The company combines Chinese and American know‑how. It provides design, R&D, and after‑sales service. That is why Zehua is trusted in the chemical industry.

Yuanda Valve Group was founded in 1994 in Hebei, China. It is one of the largest valve manufacturers in the country. The company operates on a huge site with thousands of employees. Its focus is on high, medium, and low‑pressure valves.

Yuanda produces cast iron, cast steel, stainless steel, and alloy valves. Its products follow GB, ANSI, DIN, BS, JIS, and Russian standards. They are used in oil, gas, petrochemical, water, and steel industries. Reliability and quality are the company’s priorities.

The group has branches across China and abroad. It runs more than 400 service outlets domestically. Yuanda works with major enterprises worldwide. It is recognized as a leading Chinese valve brand.

Yuanda integrates R&D, manufacturing, and sales. It has over 30 years of industry experience. Innovation and customer service drive its growth. That is why Yuanda is trusted in global projects.