Thickness of ordinary plasterboard This is the commonly used plate in decoration, and the common specifications of the national standard are as follows: 9.5mm: the choice for ceiling decoration, which is light in weight, not easy to sag and convenient in construction. 12mm: The choice for home i... READ MORE
The core of fire protection requirements for building access doors lies in fire resistance limit matching and normally closed state management, and the specific level depends on the installation location and shaft type: Classification of fire resistance Class C fire door (fire resistance limit ≥ 0.... READ MORE
Plastic spraying is baking at high temperature by spraying powder, while spray painting is drying naturally by spraying liquid. The former is more durable and the latter is more beautiful. There is a big difference between the two in raw materials, technology and effect. Which one to choose mainly d... READ MORE
Galvanized sheet is steel-based galvanized, and aluminum sheet is aluminum-based. There are obvious differences between them in weight, corrosion resistance, cost and strength. Simply put, aluminum plate is lighter and more corrosion-resistant but expensive, and galvanized plate is harder, cheaper ... READ MORE
In modern buildings, access doors and access panels are everywhere — behind drywall, in ceilings, on riser shafts, and near MEP (mechanical, electrical, plumbing) installations. They allow maintenance teams to reach valves, wires, and meters without breaking walls. But here’s the problem many specif... READ MORE
Galvanized steel plate (usually referred to as hot-dip galvanized steel plate): low cost, high strength and good load bearing, suitable for structural parts and heavy-duty scenes; However, after the zinc layer is damaged, the substrate will rust (especially in damp, acid rain or coastal environment)... READ MORE
Size and type: the net size of the manhole on the master is usually not less than 600mm×600mm (to ensure the safe entry and exit of personnel), and the manhole on the non-master can be 400 mm× 400 mm; Priority should be given to the finished manhole cover plate with seal, lock and air support (suc... READ MORE
The fire protection rating of gypsum board has reached B1 level, which means that it belongs to a relatively safe category in building materials. If gypsum board is combined with light steel keel, its fireproof performance can be further improved, even reaching the standard of A-class fireproof mat... READ MORE
Security matters in commercial buildings and critical facilities. Lockable access panels allow controlled access to behind-wall service areas—protecting valuable equipment, preventing tampering, and reducing unauthorized entry. Lockable designs are ideal for: Mechanical rooms and shafts Electrical... READ MORE
Noise travel through walls and ceilings can cause comfort issues—especially near mechanical spaces, multi-family units, conference rooms, schools, or hospitality environments. Acoustic access panels are built to reduce sound transmission while still giving maintenance teams the access they need. Un... READ MORE
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