The color of the filter sheet edge

The color of the filter sheet edge
There are many forms filters,there is semicircle, circle,and fan-shaped, customers repeatedly talked about the color issues of of material filter sheet edge,UBO specialized in stainless steel filter and metal filter for many years,has a rich production experience,the general made of aluminum,which is white,a few customers use the iron(low cost,but the quality is inferior),and also a customer’s requirements with copper,although the copper more expensive,but it is good oxidation resistance,using them is not easily to be oxidized,not broken,This copper can be oxidized into many colors, red, orange, yellow, green, indigo, purple can do it.