Knowledge of lifting chain introduced us know lifting chain is one of the key components lifting Chain Hoists , lifting chain He did not talk about lifting weights it? Besides , I'm afraid you do not understand 20 ton chain hoist the chain of more than lifting it, to tell you about today focuses on lifting chain hoists those things unknown , ears to hear with us : Lifting chain typically made from high quality alloy steel , common appearance is: polished , black, dipping , hanging plastic , electroplating ; lifting chain class is divided into : 100 , 80 , 70 , 63 , 43 , 30 , etc., the common market, mostly for 80 chain hoists lifting chain ; lifting chain manufacturing standards : ISO3077, EN818, AS2321. Implementation of the standards GB/T20947, JB/T8108.2. Lifting chain as one of the most important chain hoist accessories , throughout its production and manufacturing are strict checks to ensure the quality and security level qualified chain , so the purchase should pay more to distinguish the chain 's quality is good or bad , remember the fake and shoddy products to take home !