ป้ายกัดกรด / Acid etching sign
a kind of thin metal-sheet may thick only 1 Millimeters or more than a little bit, used an Acid etching to made a deep-hole follow the model that have been set before, By the plastic material or a kind of materials that doesn't react with this kind of Acid for protection. When got a deep-hole follow the objective then just bring it colored by the Spray color or painted. it was a sustainable works, Value increased and Bring up the place level that decorated by this kind of Sign/ label a lots.