中文 English
Shanghai 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 and is selected as excellent innovation enterprise by SCQM....[More]
Shanghai Yuan long chain transmission co.,... 【More】
Tel:021-69793035
Fax:021-69793126
E-mail:yl@yl-chain.com
Add.:Chunlong Road
