am due to visit the doctor who has called me in to discuss further. a: the new 16 gauge heavy duty cord is recommended for use with the heavy duty style pens, and will give remarkable heat recovery when using the heavy duty style pens. we will be open all winter. will it be just what i expected? this is because it is the thinnest, and most liquid state of the rubber, meant to capture all details and reduce the amount of air bubbles on the surface. quarry stone crusher cost grinding mill equipment. 