References to silicon carbide heating elements exist in the early 20th century every time they were made by Acheson's Carborundum Co. from the U.S. and EKL in Berlin. Silicon carbide made available greater working temperatures in contrast with metallic heaters. dioxide, it is used like a white pigment in plastic, https://cuttingglasslinedpipe28159.ziblogs.com/35965284/a-review-of-cu2se