强度等级相同的NN输送带和EP输送带相比较，NN输送带要薄一点。从断面纱线纹路来看：NN输送带相对紧凑一点，EP输送带从侧面看纱线弯曲程度比较大，两个波峰之间的距离比较大。
Compared with EP conveyor belt, NN conveyor belt with the same strength level is thinner. From the cross-section yarn lines: NN conveyor belt is relatively compact, EP conveyor belt from the side of the yarn bending degree is relatively large, the distance between the two peaks is relatively large.
NN输送带相对EP输送带要柔软一点。如果想识别骨架层的材质到底是NN还是EP，可以采用一个简单的方法，用火来烧：点燃骨架层单丝，燃烧迅速且冒黑烟的是EP，燃烧缓慢没有黑烟的是NN（尼龙纤维）。
NN conveyor belt is softer than EP conveyor belt. If you want to identify whether the material of the skeleton layer is NN or EP, you can use a simple method to burn with fire: ignite the skeleton layer monofilament, burning fast and smoking is EP, burning slowly and no smoke is NN (nylon fiber).