Shanghai Yuan Long Chain Transmission Co.Ltd is a joint-stock enterprise restructured by Shanghai Da Long Machinery Plant. Integrated cold & hot working ability and advantage, Yuan Long inherited the technology and management advantage of hundred year old Da Long. Specialized in manufacturing and selling chain & sprockets, Yuan Long provides large amount of high quality alloy steel chain and its related products, covering industries as petroleum, Petroleum and Chemical, mine, steel, escalator, tobacco, marine, port, cement & military, ect.
Yuan Long is permitted supplier for oil drill chain for both China National Petroleum Corporation and Sinopec Group. Yuan Long is certified by API Spec 7F and ISO9001、ISO14001、OHSAS18001 and is selected as excellent innovation enterprise by SCQM.
Website:www.yl-chains.com.cn