... Timing belt----infinite long or joined endless type.2.Strengthen cord is stainless steel, and Kevlar for your reference. 3.Adding ... the middle of belt, parallelled with two sides is steel cord.Currently,we can process with PU belt with 50mm width ... cover.A number of belts cord are for your reference,such as kevlar cord,High Flexialbe(HF) cord,High Performance (HP) and High ...