Most disputes between buyers and conveyor components manufacturers are not about price. They are about details that never reached the purchase order. This checklist walks procurement and inspection engineers through the twelve points our own team reviews before an order is released: the idler drawing and bearing seat type, bearing clearance and seal stages, shell wall thickness and shaft tolerance, pulley lagging and balance class, frame steel and flange hole spacing, idler spacing and transition distance, cleaner blade material, belt speed and dynamic balance, coating system, packaging and transport protection, the inspection and release file, and the commercial structure of MOQ, lead time, and payment. Each item ends with the number or the document you should hold before you sign. Written by Ningbo Sinoconve Belt Co., Ltd. (SINOCONVE), a belt and component factory in Ningbo, China, building since 1988.