Our company now has the following kinds of insulating tubes: 3520 phenolic aldehyde paper tube, 3640 epoxy tube, and 355 modified diphenyl oxide laminated glass cloth tube, etc. With excellent limpness and elasticity, as well as good dielectric property and chemical resistance, these tubes can be used for wires insulating and machinery protecting in devices, including motor devices, electrical equipments, instruments, and wireless devices.