Strength means different things to different people for different applications. There are many considerations regards strength, what is the requirement of the part? Does it need flexibility or rigidity? Will it be compressed? Does it need wear resistance, What environment will it be exposed to? Heat, cold, moisture, UV etc? what chemicals will it be exposed to? If you are unsure, please give us an email (To: lubenweiniubi333@gmail.com) and we can discuss which material will be best suited for your needs.