1. The size is not specified. Most openings are 500*500 if people need to enter smallpox, and 300*300 if people don't need it. Nowadays, the finished manhole is mostly used, one is beautiful, and the other is the relatively regular manhole. 2. If it is only a manhole, 1m× 1m is enough. If it is an ... READ MORE
Method 2 for handling leakage at the sewer inspection port: You can use glass adhesive to apply a film around the area where the water pipe has ruptured or where the drain pipe has leaked. After that, do not use water too quickly. Wait until the next day to use water and try to see if the water pip... READ MORE
Advantages of VCI+rust proof packaging 1. Oil free and cleaning free: Traditional rust prevention methods such as applying rust preventive oil require cleaning, which increases cleaning costs and environmental pollution. VCI+anti rust packaging does not need to be coated with grease, and the metal ... READ MORE
Combustible debris in the factory area should be cleaned up in a timely manner, and flammable and explosive materials for production and processing should be classified and stored according to standards. Timely maintenance and upkeep of fire-fighting facilities and equipment should be carried out t... READ MORE
Fire rated door refers to a door that can meet the requirements of fire resistance stability, integrity, and insulation within a certain period of time. It is a door with a certain degree of fire resistance installed in fire compartments, evacuation staircases, vertical shafts, etc. READ MORE
In order to reduce the regret of house decoration, it is necessary to do enough homework before decoration. The layout and design of a house should be combined with one's own living habits in order to improve the comfort of occupancy. In planning and layout, some factors also need to be considered, ... READ MORE
Gypsum board access doors are commonly used in many renovations, especially when decorating suspended ceilings. Because gypsum board access doors can be invisible, they are also known as invisible access doors. The general opening and closing method used is upward support. The assembly of gypsum b... READ MORE
"Legionella", also known as "Legionella pneumophila", is a pathogen that easily causes diseases of the respiratory system, especially the lungs. After infection, it often causes symptoms such as cough and fever, leading to pneumonia. In severe cases, it can cause respiratory failure, renal failure, ... READ MORE
Green travel, green home, green. . . People who pursue a healthy life trend are gradually paying attention to the environment we live in. Gypsum building materials, as an environmentally friendly building material, have attracted more and more people's attention. Gypsum building materials, no matter... READ MORE
If you have unsightly holes in your bathroom that need to be covered, plastic access hatches are your best bet, as they are waterproof, durable and aesthetically pleasing. We have a variety of sizes to choose from, welcome to buy. READ MORE
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