Ptfe-Covered-Seal Iran Import and Export Companies

First of all I would like to take the opportunity of introducing ourselves. Fa******** Company is an EPC contractor and manufacturer in the field of Steel Structures, Pressure Vessels ,Storage Tanks and Hydro mechanical Equipment of Dams. During 27 years of experience ***** has accomplished more than 110 projects in various industries. we would like to know if you manufacture double stem rubber seal with PTFE cover? Thank you in advance. Best regards,