size :800*2100mm,The door frames are made of Steel Alloy (Cold Roll Metal Sheet) Rubber gaskets in the doorframe assure an improved airtight. Surface treatment, powder coated with the color require by customer. 50mm thick. 2 layer bending edge, Opening double glaze clear class window size is equal to customer requirement, infill with desiccant to prevent condensation.1.0mm thick cold roll metal sheet with a PE roll coating finish, color-according to customer requirement. Entering Side Push Plate, Pulling Side Fixed Handle ,Internal filling paper honeycomb