The first layer is a primer coat to cover the bare base metal of the alloy.
The first layer is a primer coat to cover the bare base metal of the alloy.
第一层是底漆,以复盖裸露金属基体的合金.
The first layer is a primer coat to cover the bare base metal of the alloy.
第一层是底漆,以复盖裸露金属基体的合金.