Stainless steel

Crafting

 * Smelt stainless steel (chromium) (level 33)
 * Smelt stainless steel (nickel) (level 33)

Crafting

 * Scope (level 39)
 * Empty tank (level 47)
 * Reflex sight (level 57)
 * Surgery kit (level 75)
 * Holographic sight (level 91)

Weaponmaking

 * Combat knife (level 26)
 * Expandable batton (level 28)
 * Flamethrower (level 30)
 * Barter 9 (level 37)
 * Falcon 12 gauge (level 46)
 * SixER Magnum (level 48)
 * AMR Carbine (level 54)
 * MPS (level 56)
 * HC-Hawk (level 58)
 * BwS MG (level 60)
 * LAR-16 (level 63)
 * MASP (level 64)
 * Hastad Fusilier (level 66)
 * PDW 1990 (level 70)
 * AK-2K (level 70)
 * FR Bugle (level 73)
 * Predator (level 76)
 * SSG Seven (level 80)
 * Tundra 12G (level 82)
 * Royal ENF Rifle (level 82)
 * Commando 556 (level 85)
 * Bullpup SAG (level 90)
 * Vektr-X (level 92)
 * Arctic SR (level 95)
 * CZ 85X (level 100)
 * SKR Combat (level 105)
 * TAV 21x (level 107)