Titanium surface should be smooth, in a metallic color. Titanium allows sandblasted surface supply; 2. titanium surface allowed a slight dark and local titanium bar supplier water marks, allowing local, does not exceed half of the thickness tolerance of scratches, indentations, dents and other defects, but it should be guaranteed minimum thickness; 3. titanium surface does not allow u cracking, peeling, oxide, crimping, metal and non-metallic inclusions and other macro-defect and had traces of spilled wash; 4. titanium plate titanium rod along the rolling direction clearly allow local defects, but cleared the titanium plate thickness of not less than the minimum permissible thickness; 5. special requirements on the surface quality can be agreed between suppliers.