Many customers who are not often used in the 80 -level lifting chain, do not know how the price of the chain is calculated. In which two aspects can it be, how much is one meter or a kilogram. We know that the 6mm chain weighs 0.8 kg per meter. If I know the price of one meter, we also know the weight per meter. Of course, we can calculate the price of one kilogram. Conversely, we know that the price of one kilogram and the weight per meter can also calculate the price per meter. Because of the pitch standard of the 80 chain, the weight error per meter is small. Therefore, our chain can be quoted with rice or kg.