China PTFE Liner Manufacturers,Suppliers,vial storage for sale- 1.5ml/2ml Screw Neck ND8,small opening,8-425 thread autosampler vial with matched PP Screw Seals ND8,PTFE/rubber septa & Micro-Insert Product Description 1.8-425 Standard autosampler vials(11.6*32mm) for GC and HPLC 2.Available with black or white