https://www.stainlesssteelvalves.net/product/valve-products/y-strainers/ Once the requirements are collected, the design should be reviewed before production preparation begins. The manufacturer can examine the body geometry, connection areas, wall transitions, machining locations, and assembly relationships. This stage is particularly useful for identifying potential manufacturing difficulties before they become costly changes. For buyers, approving the drawing at this point also creates a clear reference for the sample and subsequent production.