Company profile. Zhejiang aijiren Technology, Inc. is a leading laboratory consumables manufacturer in South of China. Since 2007, our head office aijiren was started with the business mainly in laboratory consumables, such as HPLC vial, GC vials, MS vial, chromatography autosampler vial with closures, Inserts, Crimper and Syringe Filters, Etc; Water analysis consumables such as COD test tube.