Dongrun machinery spare part co.Ltd has a history of more than twenty years in truck spare parts production , it is one of the famous enterprises in China , which combines scientific research , management , and production together .Moreover , its products have passed ISO 9000:2001 certifications ;even , its production examination center has the national laboratory recognition certification , given by the natinal examination broad , and its brand is recognized as the good companion of heavy trucks . The production mainly contains the fittings of TATRA, BENZ , KAMAZ , STEYR , and VOLVO.