Aug 27, 2021 · Clean Room of HPLC Vials factory--Aijiren Vials for HPLC/GC. 27 08 2021. Aijiren Tech is an excellent Autosampler Vial factory in China, specializing in the production and sales of consumables and accessories for chromatographic instruments. Aijiren Tech was established in 2007. We have our own factories and laboratories.