| 1981 | Domed Head Aluminium Steel Rivet | |
| 1982 | Dust Mop | |
| 1983 | DYNAPAC VIBRATING ROLLER CA362D (VR-263) | |
| 1984 | Dogyu Tubular Steel Handle Pannel Hammer | |
| 1985 | Durable Plastic Quick Connector | |
| 1986 | Dogyu Magnetic Panel Hammer (One Piece Type) | |
| 1987 | Drain Scraper (Rounded for drain cleaning) | |
| 1988 | Dual-head Type Dust Collector V-2 | |
| 1989 | Dry Cutting Machine G-50N | |
| 1990 | Dry Cutting Machine G-50E | |
| 1991 | Diamond Core Bit For Glass | |
| 1992 | Diamond Core Bit For Marble (China) | |
| 1993 | D4 Tile Saw Blade-Heavy duty (Red) (XMF) | |
| 1994 | D3 Tile Saw Blade-medium ( XMF ) | |
| 1995 | Dry Powder Fire Extinguisher | |
| 1996 | Dry Riser System - Landing Valve & Standby Hose | |
| 1997 | Dry Riser System - Landing Valve | |
| 1998 | Diamond Concrete Saw Blade ( F2 ) | |
| 1999 | Deratech Hydraulic Press Brake Machine Technica | |
| 2000 | Ductile Iron Medium Duty Manhole Cover & Frame (A2-Grade) (SS30:1999 (2012), 230KN) | |
| 2001 | Ductile Iron Heavy Duty Air & Water Tight Manhole Cover & Frame (Square) | |
| 2002 | Ductile Iron Heavy Duty Air & Water Tight Manhole Cover & Frame (Round) | |
| 2003 | Ductile Iron Circular Manhole Cover & Frame | |
| 2004 | Ductile Iron Heavy Duty Manhole Cover & Frame | |
| 2005 | Ductile Iron Medium Duty Manhole Cover & Frame | |
| 2006 | Ductile Iron Light Duty Inspection Manhole Cover & Frame | |
| 2007 | Ductile Iron Heavy Duty Recessed Manhole Cover & Frame | |
| 2008 | Ductile Iron Medium Duty Recessed Manhole Cover & Frame | |
| 2009 | Ductile Iron Light Duty Recessed Inspection Manhole Cover & Frame | |
| 2010 | Dry vacuum cleaners | |