Any manufacturer with sophisticated equipment and professional skills can drill a hole that meets the expected orifice size. However, the real difference between professional nozzle manufacturers lies in the fact that the former does not consider "nozzle performance" when manufacturing nozzles, while the latter, in order to achieve the performance required by the customer, makes arrangements for orifice size, flow path, material, processing method, etc., all of which are efforts to give the nozzle the ability to achieve the expected effect. If only the orifice size is considered, the performance of the nozzle will be unpredictable and not meet the expectations. For example, if a non-professional and professional manufacturer make a 5LPM flow nozzle, even if the flow rate meets the requirements, if the spray effect does not meet the requirements, the non-professional nozzle manufacturer will ask what orifice size you want and try to solve the problem by adjusting the orifice size. On the contrary, the professional nozzle manufacturer will ask: what is the distribution situation? What are the problems encountered on site? Will changing the model improve the effect? ... This is the difference between professional and non-professional nozzle manufacturers in terms of considering fluid properties as a whole or viewing nozzles from the perspective of mechanical processing dimensions.