Aijiren produces Hand Crimper and Decrimper in different sizes, 20mm and 11mm, and 20mm of Hand Crimper and Decrimper are suitable for use in Crimp Neck Headspace Vials, 11mm Hand Crimper and Decrimper are suitable for use on 2ml Crimp neck Autosampler Vials. Aijiren produces Hand Crimper and Decrimper to make it easier for customers to seal and compress Crimp Neck Vial repeatedly.