Talking about the research and development trend of dri…
The history of human understanding and use of drill bits can be traced back to prehistoric times. The stone drill used by the deaf person to "fire the wood" can be regarded as the most primitive drill bit. The twist drill (commonly known as the drill bit) widely used in modern industria ---MORE---
Brief introduction of new urea-formaldehyde flame retar…
The new urea-formaldehyde flame-retardant foam insulation material is a water-based high-efficiency heat insulation material which can be foamed at room temperature, mainly urea-formaldehyde resin and foaming emulsion. After special formulation and precise process control, the product has exce ---MORE---
How to choose a lock? What are its classifications and …
As far as the door lock is concerned, the door lock, the bedroom lock, the passage lock, the bathroom lock, etc. according to the purpose; the ball type lock, the handle lock, the mortise lock, the lock, etc. according to the shape. The ball lock and handle lock have three fun ---MORE---
The bathroom decoration has technical problems that are…
The bathroom is a multifunctional space. The location of the toilet, washing machine, potty, bathtub and activity space must be carefully considered. Especially for large families with old people and children, in addition to functionality and safety, the storage of items should be well designe ---MORE---
The overall home is launched in accordance with the requirements of the times, a scientific, advanced and comprehensive decoration concept and method. It uses the overall concept to examine the coordination of every aspect of the decoration. It requires a more comprehensive and thoughtful desi ---MORE---
The advantages and disadvantages of wireless burglar al…
After the emergence of the cable, wireless took advantage of the latter's identity to share more than half of the country's advantage. In recent years, wireless technology has risen in the security field and ushered in the golden stage of development. Because no special wiring is r ---MORE---
Introduction to steel structure
Steel structure engineering is a steel-based structure and is one of the main types of building structures. Steel structure is one of the more common structural forms in modern construction engineering. China was the first country to use iron to build a load-bearing structure. In the Qin Shihu ---MORE---