Hangzhou Xiaoshan Hangtian Gas Spring Factory, located at Hangzhou, the paradise of China, covers an area of 10000 square meters. We are specialized in the research, development and production of gas springs, pneumatic supports, hydraulic resistance devices, and various regulator hoists. Our main products are QZ series of air supports, QZW series of slow air supports, QZL series of gas tension springs and QZR variable-speed gas springs. With the spirit of "faith-based, customer first, quality first, step by step", our business expands rapidly, especially in south, Central and North of China, South Korea, Japan and Southeast Asia. We always concern about the domestic and international market development trends, and absorb the essence of high-quality materials and fittings selected production. We have developed five main series and more than 20 individual products with stability of quality. We are fast expending the markets at home and abroad. We welcome your ...[More] and cooperation with us!