The lifting chain is purchased by kilograms, and some customers who purchase the lifting chain will need to be quoted at the offer per kilogram. It's just that the unit is different. The weight of the chain of the same specifications is fixed. In other words, the number of rice per kilogram of the chain of the same specifications is fixed. Therefore, it is possible to pay for the price of kilograms or rice, mainly based on the purchasing quotation habits according to the customer's side. Based on the price per kilogram or per meter.