... straw, wood branches, rice hull, bamboo sawdust, peanut shell, sunflower shell, furfural dregs, cotton stalks, corn stalks, sesame straw, ... black, in hollow quadrangle or hexagon columnar type, with glossy sectionCharcoal briquette machine processing feature:1.Charcoal ... carbonization furnace making semi-finished product into clean charcoals with no smoke, no taste and innoxious4. Our charcoal ...