The stone laid on the ground can be a combination of various varieties, shapes, and specifications. Natural stone has a color difference, the key lies in how to partition the stone partition, how to use spacing, lighting, spelling and other techniques to minimize the appearance of color aberration. In the laying process, the following points should be noted: 1. Different shapes and colors of plates will create visual illusions. Designers must not only avoid the negative effects brought about by this illusion, but more importantly, they must take advantage of this illusion. The combination of color and various shapes, pay attention to the degree of lighting and methods, pay attention to the coordination with the surrounding environment, to achieve the best, unexpected combination of effects; 2. The specifications used should be coordinated with the area of ​​the ground. The specifications of the plate directly affect the area effect of the ground. The small size of the sheet gives the impression that the area seen is larger than the actual area. On the contrary, the large size of the sheet appears to be smaller than the actual area. 3, using different stone paving, the friction coefficient should be consistent, different friction coefficient of the sheet due to contact with the different bearing capacity and cause potential defects. Construction acceptance
Although there are many types of tapping screws, they all have the following similarities: Round head Tapping screw,hex tapping screw,flat head tapping screw,pan head tapping screw,truss head tapping screw Shenzhen Lanejoy Technology Co.,LTD , https://www.baking-rack.com
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.