[ Air deodorization, air cooling, namely, air deodorizing by cooling air; water treatment services; ] purification and conditioning of air and water; [ manufacturing and assembling for others of apparatus and installations for cooling and treating of air and water; food processing in the nature of preservation and freezing; ] rental of apparatus and installations for cooling and treating air [ and water, ] namely, rental of air-conditioning apparatus [ , rental of water and air purification e...