Company	Item	Use	Features	Note
HHI	TURBINE CASING	Ship engine	Casting	Ship
Doosan	DIAPHRAGM	Tubine part	Heat resisting of structure	Nuclear energy
CEPHAS PIPELINES	VALVE	Ship, salt water Chemical Plant	Corrosion, heat resistance	Doosan and DSME Delivery(Futterfly)
YURIN IND	DRUM	purvey to army	Heat resisting and abrasion	-
WIA	방산품	purvey to army	High Tensile	-
(주) 경    도	HOUSING	purvey to army	High Tensile	-
유원테크	PKG HEAD	Tubine part	Heat resisting of structure	Nuclear energy
INI(포항공장)(주)	Machinery	Japan export	Oil line
World Power tech	Machinery	Japan export	Oil line	Mitsubish heavy industry Delivery (high press)
미국쿨드펌프(주) (한국지사)	PUMP	posce chmicol company	Corrosion, heat resistance,abrasion
Dae young	NOZZLE	Ship engine	Corrosion, heat resistance	HHI, STX
Mt. H control(주)	VALVE	Ship,Chemical Plant	Corrosion, heat resistance	(Safety)
ACE	VALVE	Ship,Chemical Plant	Corrosion, heat resistance	HHI·Doosan export
OKAMURA	VALVE	Ship,Chemical Plant	Corrosion, heat resistance	Japan export (Angle, Globe)
SEPERO SEIKI	VALVE	Ship,Chemical Plant	Corrosion, heat resistance	Japan export (Knife, futterfly)
B   Y	VALVE	Ship,Chemical Plant	Corrosion, heat resistance
SEWON	SAFETY VALVE	Ship,Chemical Plant	Corrosion, heat resistance	high press control
CEPHAS PIPELINES	VALVE	Ship, salt water Chemical Plant	Corrosion, heat resistance	Doosan and DSME Delivery(Futterfly)