Guangzhou SAME Water jet utilize Ultra high pump technology pressurize pure water between 250 and 400 MPA then the water jet out at high speed about 900meter per seconds from gem muzzle with diameter of bore 0.28MM . this jet create extremely concentrated force  and can cut material such as foam rubber plastic cloth carpet and wood . If add abrasive garnet to pressurized water steam can cut harder material . example are :stainless steel ，glass， ceramic， marble ， granite and so on  . Water jet metal cutting machine yields very little heat therefore no heat affected zone and hence in most cases will not require further heat treatment . water jet have been sued various of domain