The problems raised by customers with a lifting chain are diverse. But in general, you will ask how the quality of the chain is, this is a very general problem. To put it simply, we usually consider raw materials, technology, and workmanship. The chain is the same. The raw material is a steel wire, and the 80 -level chain uses 20MN2 alloy steel. Through drawing, editing chain, welding, quenching and so on. The equipment uses a fully automatic welding equipment. After making a chain, check the surface quality, and then perform a tensile test. Therefore, we can judge from the above aspects of the quality of the chain.