Nails; Aluminum alloy; Bicycle locks; Cable clamps of metal; Common metal pulls; Door fittings of metal; Door handles of metal; Hinges of metal; Metal chains; Metal clad pipes; Metal clothes hooks; Metal screws; Metal window fittings; Stainless steels

Voltage tester; amperage and current testers; electrical outlet tester; tachometers; Electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality