... gardeners know first hand the frustrations that come with kinked and tangled hoses. No matter how they are stored, the hoses always ... :Generally speaking, there are plastic(ABS) material ,zinc alloy with plastic, brass with plastic and aluminium alloy spray nozzle(spray gun).4 ... ).Every time, if develop new product, have to test more time to make sure no problem ,then producing it.2.Water pressure test ...