Hebei North Diamond Oil Drilling Equipment Co., Ltd., established on 2019-04-26, Business scope includes oil drilling equipment and accessories,Energy saving and environmental protection equipment and accessories,Sewage treatment equipment,Oil Drilling Solids Control System,Research and development of special waste treatment equipment,design,manufacture,Sales;Research and Development of Oil Drilling Technology,Technical Services,technology transfer;Sales:Oil and Gas Equipment and Accessories,Dosing device,General Machinery,Special machinery and equipment,Water treatment chemicals and fillers,Conveying equipment,Engine and accessories,Gearbox and accessories,Personal Safety Protection Products,video surveillance equipment,Vibrating screen,Instrumentation,electronic product,rubber products,Electromechanical equipment and accessories,Electrical Equipment,valve,pipe fittings,building materials,Daily necessities,hardware,ceramics;Related equipment maintenance,maintain,Install;Engineering equipment rental;Import and export,Technology Import and Export,Acting import and export business.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)