In 1988, the first domestic web belt furnace assessments | Roller furnace in 1993 | Established in 1994, marking the 10th anniversary |
Roller type mesh belt furnace in 1996 | The sealing box multi-purpose furnace in 1998 | In 1999, learn to exchange heat treatment |
Roller type normalizing furnace in 2002 | In 2004, nitrate bainite hardening furnace | In 2006, the BAB furnace |
Article 18 the donghua chain mesh belt furnace in 2009 | Roller type gas furnace in 2011 | 2013 BB furnace |