The leader enterprise, Shenyang Liming Mechanical Component Factory, the largest one in China which specializes in manufacture of various specifications and sizes of wire thread inserts and the matched repair kits as well as metal piston rings for aero engines. We have certified by ISO9001-2000 International Quality System in 2002, and got the honor of "The Best Honesty Corporation in Liaoning Province" from 2005 to 2007, and obtained the certificate of ¡°War Industry Product¡± in 2010.