YH-9 series and YH-5 series are mainly plastic series designed for auditorium, multi-purpose hall锛実ymnasium, cinema and worship venues etc. With a variety of center distance, 500mm, 525mm, 545mm, 550mm, it鈥檚 a prime option for large multi-purpose hall uniform style design. Characteristics Green material 鈥?Backrest & seat shell made of PP, easy to be cleaned and maintained; 鈥?Armrest with solid wood or PU or ABS material, cupholder is optional. 鈥?Back & seat foam are high resilient polyurethane sponge to guarantee comfort, with good strength. Guaranteed quality 鈥?Die-cut by quality cold-rolled steel plate. The metal parts are under static plastic powder coating, double anti-rust process 鈥?Robotic welding with high quality; Slow rising mechanism 鈥?Hidden slow rising mechanism makes sure there鈥檚 no shock, noise when the seat returns, and return speed is adjustable. Comply with 鈥?/span> ISO9001:2015 Quality Management System; 鈥?/span> ISO14001:2015 Environmental Management System; 鈥?/span> ISO45001:2018 Occupational Health and Safety Management System Standard Upholstery & Timber Veneer Single/mixed color, custom material & color also available Measurement: 鈥?Center distance: 550mm/580mm Back height: 1000mm 鈥?Seat height: 430mm Armrest height: 645mmWholesale Sports Venue Seating website:http://www.dfstage.com/sports-venue-seating/