Petrochemical industry:
1. Shaanxi nonferrous group weinan jinduicheng chemical industry co., LTD. (pump and mechanical seal renovation)
2. Yanan oil refinery of shaanxi yanan group (imported power equipment maintenance and spare parts service)
3. Yangzhuanghe petrochemical general plant of shaanxi yanchang group (import power equipment upgrade, repair and spare parts service)
4. Sinopec nanjing jinling petrochemical company (slurry pump maintenance and upgrade service)
5. Luoyang petrochemical company of sinopec (slurry pump maintenance and upgrade service)
6. Pilot plant of changling refinery of sinopec (equipment r&d trial)
7. Petrochina guangxi qinzhou petrochemical company (slurry pump maintenance and upgrade service)
8. Petrochina ningxia petrochemical company (slurry pump maintenance and upgrade service)
9. Changzhou, jiangsu, Germany lansheng ethylene storage tank (tank pump supply and service framework)