Sourcing conveyor belting without a technical framework is how plants end up with a belt that fails in its first year. This guide comes from the production floor of SINOCONVE, a belt factory running since 1988 with ten production lines, and it walks procurement and maintenance engineers through the decisions that decide belt life. We cover EP and NN fabric belts, steel cord belts for long-distance duty, chevron and sidewall belts for steep inclines, and heat, fire, oil and cold resistant compounds. We explain how cover grades under DIN 22102, RMA, AS 1332 and ISO 340 differ, why ply count is not a quality ladder, and how cover and carcass thickness should be matched to real duty data.