In April 2020, the company developed a 36-inch, 40-inch series of molds, by adding 36*14* 30, 36 *16* 30, 36 *18* 30, 40 *16* 30, 40 *20* 30, 40 *22* 30, 40 *24*30 steel ring pressed tires, and the molds were scheduled to be put into production in June.