6
Containers of metal for compressed gas; castings of copper or its alloys; drain pipes of metal; branching pipes of metal; penstock pipes (of metal); water-pipes of metal; valves of metal (other than parts of machine); cocks of metal (except parts of machine); water-pipe valves of metal; union elbows of metal
7
Valves other than for vehicles (parts of machines); cocks other than for vehicles (parts of machines); selector valves for gas pipe; valves, joints, deluge valves, baIl valves, grubbing joints; fire hoses
9
Gas meters; flow meters; automatic pressure control apparatus; automatic combustion control apparatus; LP (Liquefied Petroleum) gas pressure regulators; thermostats; fire extinguishing apparatus; fire hydrants; automatic fire extinguishing equipment; fire sensors (heat, smoke, flame sensors); gas leak alarms; automatic fire extinguishing apparatus; fire sprinkler heads; fire detection sensors; fire air foam heads; fire residue sense equipment; fire pressure sense equipment; carbonic acid gas fireproof system; halogen gas fireproof system; fire alarms; fire sense receiving apparatus; fire high fogs; fire hydrant case; fire extinguishing halon head; cabinet-type automatic fire extinguisher; automatic diffusion fire extinguisher, water spray head for firefighting; pressure chamber for firefighting; sprinkler head for firefighting; fire fighting nozzle; waterproof gun for firefighting; waterproof water outlet for firefighting; sprinkler joint for firefighting; foam tank for firefighting; foam mixer for firefighting; solenoid valves
11
Induction lamps for automatic fire extinguisher, hot water distributors, discharge lamps and their fittings for automatic fire extinguisher, sprinkler head for agricultural purposes; level controlling valve in tanks
17
Rubber hoses for firefighting; hoses of textile material for firefighting; canvas hose pipes for firefighting; rubber hoses; rubber twin hoses; rubber tubes and pipes; valves of India-rubber or vulcanized fiber; conjunctive metal balls for fire hose
20
Containers for compressed gas (not of metal nor of masonry); water outlets valves of plastic for water pipes (other than parts of machines); water-pipe valves of plastics (other than parts of machines); cocks of plastics (other than parts of machine); union elbows of plastics
37
Heating and air conditioning apparatus installation; works for preventing and extinguishing fire; fire facilities installation; air conditioning system installation; heating system installation; duct system installation