First: Find the best sepiolite plant need introduced by other manufacturers or the customers investigate by themselves.
　　Second: To investigate its processing equipment, the number of workshop workers and workshop prepared a long number of goods.
　　Third: Sepiolite good cashmere light density, fiber length, sand content of less sepiolite powder fineness uniform color white sand content of less quality and vice versa under the sepiolite.
　　Fourth: the good sepiolite is expensive in general, so must send people to supervise the production in the field or the signing of the contract in advance. Manufacturers to provide samples for the final sample-based inspection.