Molecular sieve highe adsorption speed ,stronge crushing and anti-contaminative resistance ,more cyclic times Molecular sieve3A,4A,13X,carbon molecular sieves are available upon requestsThe pore size of 3A molecular sieve is 3A.It does not adsorb any molecular larger than 3A.According to the industrial application specialties ,we endue our products with the characters of higher adsorption speed , ...