#670-5 Gojan-dong Namdong-gu, Incheon
1974. 04.20 : Established Sam-Jung Steel Industry -PC bridge cone, sheath duct, spiral, steel wire etc. 1986. 01. 01 Converted to Corporation wedge, bearing shoe1990. 02. 02 Review of Wedge specification -Reliability and endurance test1990. 05. Changed a ...
PC bridge cone, sheath duct, spiral, steel wire, bearing shoe, White Metal Bearing