1-4mL Autosampler Vials for HPLC, UPLC, GC-Zhejiang Aijiren, Inc1-4mL Autosampler Vials for HPLC, UPLC, GC. Aijiren has been involved in the design and manufacture of vials, caps Tel: 8618057059123 Storage Vials and Storage Caps – Aijiren A range of 4 mL