Grind Engineering

1-20: Rough Blasting Powder
21-30: Rough Dynamite
31-50: Handful of Copper Bolts
51: Arclite Spanner
52-65: Copper Tube
66-75: Copper Modulator
76-90: Coarse Blasting Powder and Coarse Dynamite
91-100: Silver Contact
101-115: Practice Lock
115-130: Flying Tiger Goggles
131-145: Heavy Blasting Powder
146-175: Big Bronze Bomb
176: Gyromatic Micro Asjuster
177-195: Solid Blasting Powder
196-215: Goblin Land Mine (Mithril Tubes if you can't get the Schema for Landmines)
216-245: Hi-Impact Mithril Slugs
245-260: Mithril Gyro-Shot
261-280: Thorium Widget
281-300: Thorium Tube.