2002-8-10 2002-6-6 Drum rollers manufactured by DEVIN are machined from only the finest certified C1045 steel. All models feature hardened (Rc46-50) contact surfaces and after heat treat machining of the bearing and seal bores for ease of assembly. Each of our finished rollers are subjected to a complete inspection and come complete with an individual DEVIN paper of certification. 62185 text/html 1.0 EN concrete drum roller mixer truck TL Smith Smith MTM advance jaeger london Devin Devin Mfg Devin Manufacturing Concrete Mixer Truck Drum Roller text