Metal decorative lines are generally non-ferrous decorative materials (mostly black, rose gold, matte gold, titanium, etc.), aluminium alloy aluminium; copper, stainless steel, etc., in the field of decoration and decoration of a wide range of applications, ceiling with just a little, it has a unique lustre and colour, a variety of forms, dignified and noble, durable, are better than other types of building decoration materials. The majority of modern metal decorative lines are aluminium and stainless steel.