In order to make any efficient goods or products, the quality of materials become(s) one of the most important things that every company needs to take into the consideration. Therefore the right selection of materials and manufacturing processes is important in enabling a successful product launched to market. High-grade materials are usually well made so it has to be better than import(ed) materials.
It is true that import(ed) materials are often cheaper than high-grade materials, but it does not mean that they (has) good quality. The quality consistency is the thing that will retain the customer loyalty so they continue to buy from you in the future. This is the reason why I chose this for my option.