Lotion bottles come in all different shapes, sizes and forms.They are made from many different types of material, most are either plastic, glass or acrylic containers.
The standards for disc springs mainly include DIN2092(Calculation) / DIN2093 ( Quality Specifications-dimensions ) of Germany, JIS B 2706-Japan, GB / T 1972-2005 of China and ISO 19690 : 2017. Among them, DIN2093 is most widely used in the world.