(1) Assembly and disassembly tools: screwdrivers, various wrenches, hammers, and various types of pullers. (2) Measurement tools: ruler, tape ruler, caliper, gauge, vernier caliper, universal energy square, percent ruler, dial indicator, pressure gauge, universal meter, etc. (3) Cutting tools: hand saws, files, files, scrapers, reamers, grinders, etc. (4) Scribing tool: scribe board, scribing pin, punch, gauge, dash board, etc. (5) Processing tools: lathes, planers, rotary beds or rigs, taps, etc. (6) welding tools: welding machine, gas welding machine, iron furnace and so on. (7) Other tools: jacks, air blowers, magnetic flaw detectors, hydraulic pressure testers, elasticity testers, balance test benches, etc.