MDF, also known as fiberboard, is a man-made board made of wood fiber or other plant fiber, using urea-formaldehyde resin or other suitable adhesive. According to the difference of its quota, it is divided into high density board, medium density board and low density board. Due to its soft and impact resistance, MDF is also easy to reprocess. It is a good material for making furniture in foreign countries. However, because the national standards for high density boards are several times lower than international standards, the quality of MDF used in China. Still needs to be improved. Medium and high density board (MDF-Medium·Density·Fiberboard), according to the national standard GB11718-89: using lignocellulose or other plant fiber as raw material, applying aldehyde urea resin or other suitable adhesive to make the density of 0.50~0.88 The plates in the range are called medium and high density fiberboard. The high-density board has a poor nail holding force than the particle board, and if the screw is loosened after the screw is tightened, it is difficult to fix it because the strength of the density board is not high. Moreover, nowadays furniture uses high-density boards, and inferior high-density board furniture, the content of formaldehyde is very high, and the human body is also very harmful. After being aired, the sheet can eliminate formaldehyde. Threading And Grooving Parting Inserts Threading And Grooving Parting Inserts,Cutting Tools,Cnc Machine Grooving Inserts,Turning Cutting Grooving Inserts Zhuzhou Zhirong Advanced Material Co., Ltd , https://www.zrcarbide.com