Fire refining can obtain 99-99.9% pure copper, and electrolysis can make the copper purity reach 99.95-99.99%. Copper is relatively pure copper. The use of copper tape：High purity, fine tissue, low oxygen content.
eBay
20PCS Square Magnetic Sheets Self Adhesive Magnets Soft Magnetic Sheet for Household Office Flexible Stickers Craft Fridge Decor
Aliexpress UK
Fire refining can obtain 99-99.9% pure copper, and electrolysis can make the copper purity reach 99.95-99.99%. Copper is relatively pure copper. The use of copper tape：High purity, fine tissue, low oxygen content.
eBay
FTO conductive glass solar cell electrode sheet electrochemical laser etching sheet drilling customization
Aliexpress UK
Cold-rolled to precise thickness (0.1-0.8mm), width (100-305mm), and length (300-1000mm) with smooth, burr-free edges. Annealed for superior flexibility and ease of stamping, bending, or etching. Material: Copper.
eBay
100pcs Size 20 30 40 50 60 80mm Reflector Sheet For Total Station Survey Geography Fluorescent Green Sheet Reflective Sticker
Aliexpress UK
The copper plate is laser-cut, the surface is bright, no burrs, and the corners are polished. Reduce unnecessary harm to you and can be used as a raw material. -Material: pure copper. -Thick:0.1mm - 0.8mm.
eBay
67x110x1mm AIN tablets Aluminum Nitride Aluminum Nitride Ceramic Sheet Thermal Insulation Ceramic Sheet
Aliexpress UK
The use of red copper is much more extensive than that of pure iron. Every year, 50% of the copper is electrolytically purified into pure copper, which is used in the electrical industry. A small amount of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the conductivity of copper.
eBay
2pcs 40*40mm Semiconductor Power Generation Sheet Fireplace Fan Motor Generator Sheet Stove Burner Heater Replacement Parts
Aliexpress UK
Laser Engraving: Engrave patterns, text, or logos onto the copper surface. We handle orders from single pieces to large batches.
eBay
Thick 1-5mm ABS Plastic Sheet Styrene Plastic Flat Sheet Black Board Vacuum Forming DIY RC Body Parts For Industry Tools
Aliexpress UK
Product Details:Material: CopperTotal Size: 1000mm x 200mm/ 39.4" x 7.9"(L*W)Thickness: 0.1mm/ 0.004"Package Content: 1pcs x Pure Copper SheetMaterial These copper sheets are made of good hardness copper material which is durable and has good electrical and thermal conductivity. It is antirust that has a long service life.Feature The cooper sheets can easily be cut and soldered by using metal snips and industrial machine. The surface is smooth can be bent and cut into any shape you want.Application Widely used in DIY projects crafts precision instruments industrial and scientific thermal conductivity. Can also be processed to various machinery parts such as gaskets washer and applied to some house repair items.Notice Please use it carefully and cut with special tools. There may be small scratches during transportation.
eBay
Makita Brushless Electric Scissors Rechargeable Cordless Iron Sheet Scissors Cutting Tools Metal Sheet Shear 18V 20V Battery
Aliexpress UK
The use of red copper is much more extensive than that of pure iron. Every year, 50% of the copper is electrolytically purified into pure copper, which is used in the electrical industry. A small amount of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the conductivity of copper.
eBay
H2S H2D Build Plate For Bambu Lab H2S PEO PET PEI Plate 355x320mm Double Sided Spring Steel Sheet for Bambulab H2S H2D PEI Sheet
Aliexpress UK