Tun-Car India Ltd. Manufactures T. C. Wear Parts for Old Type Extruder Weldcraft. Tun-Car India Ltd. Also manufactures Grooved Rollers, T. C. Knurled Rings, and Wire straightening checking gauges. T. C. Wear Parts for Old Type Extruder Weldcraft have 95 dia X 18.0 mm thick Knurled Rings & Grooved Rings. T T. C. Wear Parts for Old Type Extruder Weldcraft come with 87 mm long mouthpiece. It is available with 5-degree taper 20.5 X 18.0 mm extrusion dies.