1、HIGH TEMPERATURE RESISTANT: The surfaces of the rollers is resistant to high temperatures up to 260°C. Finely machined, matte finish, wear resistant, smoothly, and more resilient. It is used for high temperature welding of PVC waterproofing rolls and fabric membranes. 2、BRASS WHEEL: Sturdy brass material, pressure resistant and corrosivity resistant, used for welding tarpaulin, advertising cloth, pvc waterproofing rolls, and other thermoplastic plastic coil welding press flat, geomembrane tunnel waterproofing welding roll use; corner press, to prevent cracking at the seams and warped edges. 3、FLEXIBLE OPERATION: Combo seam rollers are designed with double bearings, stable without deflection, more flexible operation, effectively improving the welding speed and construction quality, detachable structure, easy to replace. 4、HANDLE DESIGN: The handle is made of selected wood, wear resistant, ergonomically designed, not easy to wear and feel comfortable, closer to humanization, is a good helper for your construction. 5、WIDELY USED: Seam roller is mainly used for membrane/sheet welding and checking the waterproof layer weld seam of false welding, leakage welding, etc., such as PVC/TPO coil welding seam, EPDM bonding seam, etc. mainly.