Once you have these materials, you can use either of the crafting stations (Fabricator or Tek Replicator) to create the Flamethrower. Since finding Sulfur can be tricky, here's a Ark Survival ...

Collect the Element then use the TEK Replicator to craft all TEK items. The new ARK Survival Evolved PS4 and Xbox One Tek Tier update is planned for launch on February 14.