Asbestos is a mineral fiber used in many fields, especially building materials. Due to some special features such as high tensile strength, chemical resistance, heat resistance, low conductivity, sound insulation, great flexibility ... asbestos is present to make over 3,000 different products, from simple to complex.
Construction is a work of many risks of occupational accidents but many workers in this field have not paid attention to the use of labor protection equipment
Previously, the most commonly used industrial sewing machine was a butterfly machine, using a pedal-operated motor, but today it is not as popular as it is difficult to use, uncomfortable, not as healthy as a modern industrial machine. It functions as a family machine. This machine is quite cheap, about several hundred thousand (by the family do not use to liquidate). E would love to have this machine just for the purpose of decoration, I like its classic beauty.