经新能源用户多轮严格检验，PU材质中未检出铜、锌等任何有害金属，相关检验结果及电子图像可充分佐证，其安全性已得到权威验证，可完全放心使用。After multiple rounds of rigorous inspections by new energy users, no harmful metals such as copper or zinc have been detected in the PU material. The relevant inspection results and electronic images can fully corroborate this, and its safety has been authoritatively verified, making it completely safe for use.