Jul 10, 2020 · Jul. 10th, 2020. Aijiren is the factory of 1.5ml HPLC Vial and Cap. Its product contains autosampler vials and caps for HPLC and GC for all common instrument manufacturers, such as Aijiren Technology, Aijiren, Shimadzu and others. Aijiren, 1.5ml HPLC Vial