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Choose the hardware lock six big tricks to install a peace o…

Nowadays, there are many kinds of hardware locks on the market. In terms of door locks, door locks, channel locks, bathroom locks, etc. are classified according to the purpose, such as ball lock, handle lock, mortise lock, etc. according to the shape. Such various forms of classification have ......

The safety level of the lock is different. The more complica…

A few days after leaving the house during the Spring Festival, I went home to open the door and found that the key could not be unlocked. Recently, Ms. Jiang, a citizen, encountered this anecdote. "Is it because the door lock has been touched by people?" In a hurry, she rushed to open the ......

MAG US mergers and acquisitions will come to an end

Abstract French industrial engineering group “FIVES” is acquiring American company MAG Group. MAG Group USA is a professional supplier of high-end large-scale composite parts processing solutions and composite materials processing. It works in multiple jobs... French industrial e ......

The origin of the mushroom stone name

The mushroom stone is named after the protruding decorative surface like a mushroom, and it is also called the taro stone. It is mainly used for the decoration of outdoor walls, cylinders and Other façades. It is especially simple, thick and stable. The products are widely used in the decor ......

How to identify high-quality carbide saw blades?

【China Aluminum Network】 In general, carbide saw blades consist of saw blades and carbide saw teeth. Carbide sawtooth is currently basically imported. The alloy granules used in high-quality saw blades are thicker and larger, because such alloy saw teeth can be sharpened several times ......

Selection of low voltage electrical conductors

1. The type of conductor should be selected according to the laying method and environmental conditions. In addition to meeting the above conditions, the insulated conductor should meet the requirements of the working voltage. 2. Select the conductor cross section and meet the following requi ......

Deep cleaning of stone and general renovation method

Under normal circumstances, the diseases of stone can be basically divided into two categories: one is that the micropores of the stone are occupied by foreign bodies, and the microstructure of the stone itself has not been significantly damaged, such as most rust yellow spots, organic spots, ......

Three major obstacles to curbing the development of China…

Abstract PV has fallen into a trough in external troubles and suffered industry-wide losses. In the face of double-counter sanctions in Europe and the United States, whether it is government officials or business leaders in the photovoltaic industry, as well as experts and scholars in the eco ......

Wallpaper identification method

To identify the quality of wallpaper, generally refer to the following aspects: 1. First discriminate the material: natural material or synthetic (PVC) material, the simple method can be judged by fire. Generally, natural materials burn without odor and black smoke. The burned dust is powder ......

Air purifier type introduction

Recently, the smog weather has exploded, and more and more citizens have reduced their outdoor activities and have purchased air purifiers. However, there are many types of air purifiers on the market, and they are mainly in the form of household and commercial air purifiers that remove indoor ......