How much are the prices of meter boxes made of different materials?

The materials of the meter boxes are roughly divided into stainless steel meter boxes, glass fiber reinforced plastic meter boxes and plastic meter boxes.

Which is the cheapest in terms of the same specifications? The stainless steel meter box is made of 206/304 stainless steel, which is made of metal materials. The price of raw materials is the most expensive among the three, so the stainless steel meter box is also more expensive than other meter boxes. The fiberglass reinforced plastic meter box is made of non renewable materials. The plastic meter box is made of PC+ABS materials. In terms of cost, the plastic meter box is the cheapest. Of course, the three materials are different, and they also have their own advantages and disadvantages. Please confirm with the demander what materials are used.