APM has different kinds of bicycle spokes, nipples and tools/Accessories.
Spoke Color Serious: Powder Coating for any material, Nanometer colorful coat for stainless steel, ceramic nanometer Ti Plating for stainless steel. Nipple Color Serious: Nanometer colorful coat for brass nipple. Anodize color for alloy nipple.
Spoke Material: Stainless, Sandvik, Steel. Nipple Material: Aluminum , Steel, Brass.