We can judge the quality of the chain to view the following aspects: 1. The link surface (either galvanized or black or polished) is smooth, can not have pits. 2. If the chain is black, then put on white gloves Cangzhou g80 lifting chain, then wipe the chain to see if the fade, if there is a black substance on the gloves, or whether there is a lot of oil, a good black chain should be black and black, and the surface is very clean, with a little oil, a small amount can not be washed out or fade. 3. Typing must be clear. The jack can not have a clear position by the top marks. 5. The welding position welding mouth, this position should be uniform welding, deburring to clean, weld location can not be offset occurs to the ring in the middle of the chain, not on the side or lower side. 6. The chain does not appear high and low angle and high side, low side. Chain vertical, generally speaking, the degree of distortion in the vertical chain of a chain of no more than 30 degrees. Lifting chain need to do maintenance, you can reduce the wear and tear, but some users that an error occurred in the understanding of maintenance, making maintenance work see results below give you a detailed presentation. User maintenance of chain of misconceptions 1. cleaning can feel clean chain, not dry. Have clean water to the chain of action, but the chain is not dry, the water will react with the chain occurs, the situation appeared rusty. 2. It is necessary to lubricate the chain for wear. Many users feel that the new chain does not require lubrication Cangzhou g80 lifting chain, when there is erosion and lubrication too late, in fact, not only in everyday life do lubrication Cangzhou g80 lifting chain, to be able to reduce the wear and tear, if there is lubricating wear again, would not achieve very good results. 3. Apply lubricant better. It is understood that many users of lubrication, in fact, spread evenly lubricants, like Cangzhou g80 appropriate lifting chain, if excessive lubrication, easy to make dust adhesion. For maintenance misconceptions aspects do you want the user to correct, correct treatment maintenance work, so lifting the chain of life was extended. Lifting chain size _ _ Cangzhou lifting chain lifting chain image from Hebei chen sling Manufacturing Limited. Hebei chen sling Manufacturing Co., Ltd. (www.qzhon.com) strong, credible, in Baoding forestry machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead chen sling into the brilliant and you work for a better future!