As the leading manufacturer of petroleum testing equipment, asphalt testing equipment and related lab equipment in China, we've worked in the field for more than 20 years, except for the domestic sale, we also do export sales since year 2009. We have persisted on the business idea of "Integrity Basis and Quality First" for the stable and constant development. And we're always making effort to develop together with customers from both domestic and abroad on the basis of reciprocity. Client, Quality and Service are our supreme target!