Throughout this product catalog you will notice three distinct colors each representing a specific alloytype.
在此产品目录中，你会注意到有三种不同的颜色，每种代表一个特殊的合金类型。
2
Selectamark's technology also USES microdots, though instead of celluloid it employs polyester or a nickel-based alloy, depending on the type of adhesive involved.
One type Aluminum Alloy cartridge design, to ensure that the internal parts and motor, tarpaulin from rain erosion, while greatly increasing the internal space.