suitable for chemicals, robust and well adjustable spray nozzle

Have we bought this spray bottles for household use (for catering-oil / grease remover and cleaners for sanitary facilities), as these spray bottles are suitable, unlike the construction market products for chemicals, without which equal decompose the seals and the inner life.
We. we use the bottles for different (corrosive) the mixed cleaner, as opposed to the various hardware store bottles we had been holding both the seals, the inner workings and the spray chemicals stood.
It can be easily and quickly build pressure and the spray is easy to adjust to the / through the nozzle.
For us so far 5 stars!