HaoChang has been specializing in manufacturing fittings for various office swivel chairs,have imported advanced equipment and pretty material,employed skillful professionals,have precise artwork and quality inspected,produced good fittings for office swivel chairs with good looking and endurance.Our main products are the follows:backrest box,three knot set,armrests,big claw etc various blow-plastic and pour-plastic series.We have gained old and new customers' faith and favour with our solid strength and well-knit speciality as well as the best after service.We sincerely hope further cooperate with you and offer you the best service,welcome to visit our company at your any convenient time.