Zhejiang Shengwei High Pressure Vessel Co., Ltd. is located in Yuyao, a famous historical and cultural city abutting the Hangzhou Bay. The company was established in June 2010, engaged in industry of high-pressure vessels. The factory covers about 21000square meters and an plant building with 15000 square meters. Now the company has the fixed asset more than 30 million RMB, and 120 employees. And there are 32 technicians among them. Also company has three advanced production lines of steel seamless cylinder and corresponding testing equipment. The company aims to produce and sales over 400, 000 0.7L-80L steel seamless cylinderss each year.

Hebei Tianao Technology Co., Ltd. Was established in 2023, is a collection of production and processing, customized services, sales, trade as one of the private enterprises. The company is located in No. 158 Yuhua West Road, Qiaoxi District, Shijiazhuang City, the factory environment is elegant, well-equipped, sufficient resources, the company has advanced technology, professional and technical personnel. The company's sales have grown steadily since its inception. The company adheres to the business philosophy of "quality and price, customer first", and is effectively reflected in the operation, and is committed to providing customers with sufficient supply, stable and reliable quality.