Welding Samples Special Samples Refrigeration Compressor Low Voltage Electrical Home Applaince Hardware Harness Sample Auto Parts Butt Welding Carbon Steel Aluminum Stainless Steel Thermoformed steel stud nut projection welding sample 0.8mm hot-dip galvanized sheet spot welding sample 2mm carbon steel + M10 nut welding sample Brass spot welding samples Spot welding sample of bracket on automobile connecting rod Spot welding sample of car side burner reinforcement rib Square nut projection welding sample Stainless steel ball joint rod spot welding sample 1+1mm carbon steel plate welding sample 1mm carbon steel plate + M6 welding sample with positioning ring nut 1mm carbon steel plate + round nut ring projection welding sample 1mm low carbon steel + M5 stud spot projection welding sample 12+8mm stainless steel ring projection welding sample Anti-seismic bracket spot welding machine sample Automotive power board multi-spot welding sample Bearing retaining bracket spot welding sample