Why will charge model fee? Why does the glass bottle factory charge a sample fee for customer proofing? Whenever there is a new style, why do we charge a sample fee? Because when we make a sample, our factory has to stop all the machines and use a group of machines to make samples. This…
Glass jar material The material of the glass jar is divided into high borosilicate and soda lime glass. High borosilicate glass: it is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. With excellent functions, it is widely used in professional glass…
