I am researching the potential for us to use a mole sieve for vacuum gas oil dewaxing. I understand that 5a is typically used for n-paraffin selectivity. Do you agree? If so, can you suggest a specific product, pricing, and provide a sample for testing? Best Regards 联系方式Co:PetroTech Energy, LLC Add:731 FM 1127. Shepherd, TX 77371 Tel:936 628-1000 Fax:(800) 547-2192 Email:marketing@petrotech.biz Website:www.petrotech.biz