Aijiren uses Silicone and PTFE composite compression to make Septa, but also uses Butyl to make Septa. According to different needs of Vial, the raw materials used, thickness, diameter, etc. are different. Aijiren produces various types of Septa, it needs to prepare Septa of different materials and thickness. The worker in the picture is checking the compounded Silicone/PTFE Septa for the unified cutting later.