Home » News » 9-425 » 2 mL Screw Top Vials with ptfe liner pp cap for wholesales Aijiren 2 mL Screw Top Vials with ptfe liner pp cap for wholesales Aijiren 1.5ml 9mm Short Thread Autosampler Vials ND9 are made of clear Type 1, Class A Borosilicate Glass with a writable label for sample identification.