Shandong Hengtong Expansion Joint Manufacturing Co., Ltd. (founded in August 2001 with a registered capital of 80 million yuan, located at the foot of Mount Taishan Mountain, a world famous double heritage, with beautiful environment and convenient transportation (west to Beijing Shanghai Railway, west to the "Beijing Kowloon" artery, south to Beijing Shanghai, Beijing Fuzhou Expressway, and Qingdao Yinchuan Expressway) is a large expansion joint manufacturing enterprise integrating research and development, manufacturing, sales and service.
    After years of development, the company has successively obtained the AB level qualification of China's special equipment manufacturing license, the ASME "U" steel seal and ISO9001:2008 quality system certification in the United States, the PED-CE certification in the European Union, and the certifications of five major classification societies including CCS in China, ABS in the United States, BV in France, KR in South Korea, and DNV in Norway. It has also become a first tier supplier of Sinopec, a subsidiary of PetroChina, a subsidiary of CNOOC, a supplier of Shenhua Coal to Oil, and a first tier supplier of China National Chemical Corporation. Expansion joint products include corrugated expansion joints for pressure pipelines, corrugated expansion joints for pressure vessels, metal corrugated pipes, metal hoses, PTFE compensators, rubber compensators, and non-metallic compensators, with 6 major categories, 20 series, and over 2000 specifications. The products have been optimized and manufactured in accordance with national standards such as GB/T12777-2008, GB16749-1997, ASME, EJMA, etc., and have established a comprehensive quality assurance system.