chair parts Hewei has attained ISO9001:2000 quality management system certification. Our products are in accordance with BIFMA, BS5852 and CA-117 international test standards. We have a wide range of products, such as PU armrest, PP armrest, multi-function adjustable arm, PU back and seat of ESD, molded foam as well as headrest and cushion for bathtub, dental bed and car headrest.