|This roller is used for PP, PT, PE, ABS, PVC and cloth material surface calendering. The material is 45 seamless steel or alloy steel, processed by heat treatment and machining. Flow path or clamp sleeve is installed. The temperature tolerance of cooling or heating is not more than 1mm. The surface hardness is HRC55 - 58. The hardness after chroming and polishing is HRC 62. Heat deforming is not more than 0.01mm.|
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