Alibaba Industrial Safety Workshop Adjustable ESD Antistatic Factory PU Foam Chair Lab Stool Cleanroom Seating Polyurethane ESD Lab Stool Chair With Footrest and Nylon Base for Cleanroom Antistatic Laboratory School Biology Lab ESD Ergonomic Adjustable Rolling PU office Chair with Back Cleanroom stainless steel chair for Hospital ESD Adjustable Swivel lab chair for workshop Movable Stainless Steel Chemistry Adjustable ESD Industrial PU Foam chair lab stool laboratory chair Antistatic work Chair Black PU laboratory stool with wheels for school ESD Chair with Fire proof retardant UK standard pu injection foam seat and back base stainless steel footring hospital chair Chemistry Lab Room stool Adjustable chair with wheels