就这三句话

The welding traces on the surface is the byproduct of welding process. The glass is not perfectly embedded in the iron, which leads to the gap. The light noise and the vibration of the glass are normal phenomena. They are not quality issues.我翻译了一下，给你删掉了几句废话。不过不保证百分百按照原意，仅供参考。毕竟是你白嫖的翻译，如果你拿去用了出了事儿我不负责任，与我无关。