Profile: Thelkane Industrial Chimneys Ltd. specializes in the design, manufacture, and erection of steel industrial chimneys, and their associated ducting and structures. These are undertaken in accordance with the relevant design code. A computer aided design package has been installed to provide an accurate and efficient quality service to our customers. Steel types available for chimneys flues, and liners are S275 mild steel, 304 stainless steel, 1.4003 stainless steel, and 316 stainless steel.