Product introduction SLCMS-US type carbon molecular sieve is a new type of carbon molecular sieve adsorbent developed by Shanli Technology after the existing SLU Niho-100 type carbon molecular sieve. The adsorbent has the advantages of high nitrogen production rate, low air-to-nitrogen ratio and low ash content. As a product developed by Shanli Technology in 2020, this adsorbent makes it more economical to prepare 99.999% purity nitrogen at one time by the PSA method.