KERUI

Nitrogen; nitric monoxide; nitrous oxide; dry carbon dioxide ice; soda ash; salts for industrial purposes; oil dispersants; chemical additives for drilling muds; drilling muds for use in oil well drilling; industrial chemicals; emulsifiers for industrial purposes; defoaming agents, namely, antifoamer for water-resistant slurry; phosphor powder; chemical additives for fungicides

Boilers, other than parts of machines, namely, electric boilers, heating boilers, industrial boilers, all for use in the field of oil and gas exploitation; heating apparatus for solid, liquid or gaseous fuels, namely, heating installations for use in the field of oil and gas exploitation; fuel economizers for use in the field of oil and gas exploitation, namely, integrated structural add-on parts for boilers, furnaces and water heaters that increase fuel efficiency; distillation apparatus not for scientific purposes; evaporators; steam boilers, other than parts of machines; oil burners for industrial use in the field of oil and gas exploitation; steam generating installations; chimney flues for heating boilers; heat pumps