MMB1.5*1. 8@MMB1.6 *1.8 mine waterproof closed doo

  The door body of Futong brand MMB waterproof and fireproof closed door adopts steel structure, the door body is attached with reinforcing bars in both vertical and horizontal directions, and the door frame is connected with the concrete wall through the bar hook
The melting temperature of embedded parts, stiffeners, hinges, latches, door locks and other hardware accessories of coal mine waterproof closed doors shall not be lower than 1000 ℃; The door frame, door leaf panel and its reinforcement are all made of cold-rolled steel sheets, which are formed by one-time rolling
The thickness of the door frame steel sheet is 25\u steel, the stiffener is 12mm cold-rolled steel sheet, and the thickness of the door leaf surface steel sheet is 10mm; In strict accordance with the national production standards for waterproof and fireproof closed doors, various production processes are implemented
Each process of blanking, processing, assembly and welding is inspected by a specially assigned person
Each process of door bone, door frame, embedded parts, door frame and door leaf is incomparably perfect, firm and durable
MMB waterproof and fireproof closed doors and supporting mfhsl fire fence dual-purpose doors produced by our factory are not only of good quality, fast delivery speed, but also good after-sales, Please feel free to purchase and use!! In particular, female friends know that when purchasing a product, they need to provide information such as its specification, model, size and even its characteristics and functions to purchase suitable items
When purchasing or customizing MMB waterproof and fireproof closed doors, they also need to know its relevant parameters and models

MMB1
5*1
8@MMB1
6 *1
8 what is the difference between mine waterproof closed doors? The only difference between them is the size
These two sizes are the most used waterproof and fireproof closed doors in coal mines
Moreover, the waterproof and fireproof closed doors we produce can be fully sealed, that is to say, the new waterproof and fireproof closed doors have stronger pressure resistance and are more solid, which can truly realize the role of waterproof and fireproof