The correct height of desks and chairs should make a person holding two substantially vertical when the ride: First, when the feet flat on the ground, thigh and calf desk drawer can be substantially perpendicular to the forefront this time can not be formed on the thigh of planar oppression. when the arms hang down naturally, Zhoukou steel desks and chairs, substantially perpendicular to the upper arm and forearm, then Desktop height should be just under the surface contact with the arm. This allows people to maintain the correct posture of sitting and writing. If the tables chair height with unreasonable wholesale Zhoukou steel desks and chairs, will directly affect the person's posture is not conducive to the health of users. For this reason, high desk space under the table is not less than 580 mm, a width of not less than 520 millimeters of space. According to the survey, calculated using the child's height multiplied by 0.27 suitable high chair, find a table and chairs up the most appropriate of about 33cm. Desks and chairs material should have physical properties which physical properties student desks and chairs material: density is mass per unit volume of material islet that sting quality material volume ratio. People tend to feel dense material "heavy", small density substances "lighter, where the" heavy "and" light "essentially refers to the size of the density of matter. (1) furniture manufacturers to make the melting point of the material from a solid when the temperature of the liquid into a. (2) thermal conductivity material to transfer heat from the surface of the foot to the other surface of Qiao ability to represent common thermal conductivity. thermal conductivity coefficient, it is a good conductor of heat, such as small metal thermal conductivity, thermal insulator, such as polymer materials. (3) heat-resistant material under heat conditions can maintain its ability to excellent mechanical properties, Zhoukou steel furniture manufacturer, usually expressed in the heat resistance temperature. crystalline material with a melting point temperature of indicators such as metal materials, crystalline plastic transition temperature of amorphous materials such as amorphous ah index materials, glass, etc. (4) thermal expansion of the material due to the furniture manufacturers alas temperature changes expansion or contraction of the performance, usually represented by linear expansion coefficient. swelling of the polymer material with the largest, followed by the metal material, a ceramic material to a minimum. (5) flame resistant material for flame resistance and high temperature performance. According to the material fire capability Divided into non-combustible materials and flammable materials Zhoukou plastic furniture custom | Lu Yi Shu [US] | Zhoukou Luyi steel desks and chairs provide comfortable beds US Steel Industry Co., Ltd (www Shu US steel bed by the Luyi Co.. lysmcy.com) is Zhoukou, bed leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs in Luyi SHU US leadership with the staff warmly welcome all inquiries negotiations to create Luyi Shu Mei better future.