Black boob tape is made of skin-friendly cotton fabric and hypoallergenic glue. It is a customised alternative to traditional bras. Because of its special elastic fabric with adhesive, everyone can cut and mould it to their cup size. The black boob tape i
Metal hard seal butterfly valve butterfly plate is installed in the diameter direction of the pipeline in the butterfly valve body cylindrical channel, disc disc disc around the axis of rotation, rotation Angle between 0 to 90, when 90, the valve is fully
The application of ultrasonic equipment is mainly in the solvent thermal intercalation method and the redox method. These two methods are relatively simple to operate, and the cost is lower than other preparation methods.
Tungsten Electrodes Due to the characteristics of tungsten, it is very suitable for TIG welding and other electrode materials similar to this kind of work. Adding rare earth oxide to tungsten metal to stimulate its electron work, the welding performance o