Uncover the mysterious veil of strange cork
Many people always feel unfamiliar with cork. In fact, we have had early contact with it in life, but we rarely pay attention. Cork was first applied to bottle caps for red wine, and later the Portuguese developed cork wallboard and flooring products. According to experts, the application of cork flooring in China can be traced back to 1932. At that time, only 1 cm thick simple cork flooring was used in the Beijing Capital Library for 70 years. Over the years, the reason why it has not been promoted is because the prices of early cork flooring were relatively high and the varieties were developed less, but with the progress of society and the development of science, the hidden secrets of cork are gradually being deciphered by people. Charm is fascinating. The first secret: precious trees Cork is the bark of Quercus variabilis. It is a kind of oak tree, mainly distributed on the Mediterranean coast. It is one of the oldest surviving trees in the world. It is about 60 million years old. Cork is an extremely rare material. It can only be peeled when the cork oak is 25 years old. It is then stripped once every 9 years. If it is well maintained, a tree can be stripped 10 times and collected. Up to 1000 kg in weight. At present, the cork output of Portugal can only be maintained at around 200,000 tons per year. The preciousness of cork is evident. The second secret: Recycling Softwood is a natural material that is good for human health. Because of the bark, the trees will continue to grow after harvesting. The new tree bark will be free from any damage, and will be taken from nature without destroying the natural environment. The third secret: Soft and reasonable Cork consists of tens of thousands of dead cells that form a honeycomb structure. The cells are filled with air and form airtight air bags. When subjected to external pressure, the cells shrink and become smaller, and the air pressure inside the cells increases. When the pressure is lost, the air pressure in the cells will restore the cells to their original state, which is the "soft" principle of cork. Because each cork cell is a small insulator, it is more comfortable; each cork cell is a small pressure absorber that can be restored to its original shape after being squeezed out of the furniture. Its elasticity is good; each cork cell is also a small one. The shock absorber, therefore, it is very quiet. The fourth secret: all the cleverness Cork flooring is broadly divided into two broad categories: The first category: The earliest products, the surface without any cover, can show all the excellent features of cork, more suitable for small family applications. The second category: Surface-treated cork flooring. This kind of cork flooring can be divided into two branches. The first branch is painted on the surface of cork flooring, that is, the surface of the cemented surface is coated with UV varnish, and the photosensitive lacquer PVA is used. According to the different types of paint, it can be divided. For glossy, matt, and peaceful light, this cork flooring cork layer is slightly thicker, pure texture, only 0.1-0.2 mm of the paint film will not affect the excellent performance of cork, and more wearable, more suitable for home . The other branch is covered with a PVC veneer on the surface of the cork floor. Its structure is usually four layers, the surface layer and the bottom layer are PVC veneers, and the middle two layers are the natural cork decorative layer and the cemented cork layer. Due to its thicker wear-resistant layer, it is more suitable for spaces with large people flow, such as the living room, shops, libraries and other public places in the home. With the continuous improvement of people’s living standards and the increasing demand for environmentally friendly products, cork flooring can be used both as a large-area decoration and as an artistic decoration because of its unique artistic and all-natural patterns. Especially for families with old people or children, if they are covered with cork flooring, not only can they maintain a full sense of wood, but also excellent flexibility can reduce the chance for the elderly or children to fall, at the same time, on the two or three hundred, with solid wood flooring Similar prices have gradually been picked up by consumers. Nature floor del floor paint decoration space furniture
Stainless Steel Pipe is produced by Cold Drawn or Cold Rolling method, with stainless steel grade material.
The Stainless Steel Pipe including Steel Grade as below:
Nickel Alloy Grade: Stainless Steel Pipe Stainless Steel Pipe,Large Stainless Steel Pipe,Stainless Steel Tube Pipe,Welded Stainless Steel Pipe Torich International Co.,Ltd--The Steel Tube Maker , http://www.chinasteeltubepipe.com
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219, N06690,
N08800/8810/8811, N08825, N08028, N08535, N08904, N08925, N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S, 253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensitic Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439, TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.