... in cutting, extruding and building warehouse. tyre cutter knives and blades. Model: as request. Please provide drawing or main parameter ... hardness of blade even, no deformation, no decrease though grinding.3 The Netrogen furnace cryogenic technology.4 Ultrasonic flaw detection ... 20%-50%6 Unique package: each one has certificate, grinding drawing, instruction manual, carrying glove, hook and spare bolt ...