Shandong Yahua  Machinery  Manufacturing  Co., Ltd. Founded in 2002，Specializing in the production and export of semi - trailer mechanical suspension, air suspension, support devices, axle and  other trailer accessories, Set product design, development and production in one. All products  of the company adopt international quality standards, the products are exported to overseas countries, including the United States, Russia, Iran, Malaysia, Dubai, Iraq, Nigeria, Zambia and other countries. The company has strong technical force, advanced technology, complete equipment and has passed the TS16949 quality system certification.