1995 The 1st production line of hot-dip galvanized steel pipe was put into operation
2000 The 2nd production line of hot-dip galvanized steel pipe was put into operation
2005 Started to produce galvanized steel conduits and ECN
2008 Started to produce casting conduit bodies, Rigid fittings, LT fittings and support fittings
2010 Started to produce PVC coated steel conduits and fittings
2011 Created “PRODUIT” and “PROCOAT” brands
2015 Started to produce stainless steel conduits and fittings
2017 Establish Tianjin branch Factory and started to produce galvanized steel conduits
2018 Establish Jiangsu branch Factory and started to produce EMT In-line
2022 Started to produce Explosion-Proof fittings
