Guangdong Long Machinery Co., Ltd. was built in 1967. Formerly known as the defense industry companies - state-owned machinery factory Long March; 2002, the company transformed into joint stock companies. The company is located in the city celebrities - Zhongshan City, Guangdong Province, covers an area of 43000㎡, production workshop 15,000 square meters. Our main products are pressure vessels, welding gas cylinder, and a cylinder production line testing..........