Aijiren Participated in the 2019 Beijing Exhibition. Aijiren has specialized in producing autosampler vial for 20 years. Aijiren’s products include 2ml autosampler vial, 4ml autosampler vial, headspace vial, 20-60mlsample storage vial, syringe filter, reagent bottle, COD test tube, etc. Aijiren employee take a photo with foreign customers.