... , hydraulic valve, reductor,chassis part,electronic control device,and other key parts all ... CO.,LTD. 9Hydraulic oil cylinderSICHUAN CHANGJIANG HYDRAULIC PART CO.,LTD. 10Drilling rod--513 frictional drilling rod from JIANGSU HENGTONG MACHINERY MANUFACTRUE CO.,LTD ... radiatorHENAN YUXIN VEHICLE AIR-CONDITIONER CO.,LTD.18Air-conditioning system-- HENAN YUXIN VEHICLE AIR-CONDITIONER CO.,LTD. Rotary Drilling ...