国产三级伦理在线,久久久久黄久久免费漫画,成人国产精品日本在线,欧美美最猛性xxxxxx

The RUBBER INSULATING LINE HOSES FOR JUMPER WIRE are used as a portable protective device for protection of electrical workers from accidental contact with live electrical conductors, or circuit.
高壓絕緣跳線管是一款便攜式保護裝置，用于防止電力操作人員意外觸碰帶電的電導體，裝置，或電路。
As the section is designed in scroll, it is easy to install and to remove from electric wires.
因為產品的部分結構是設計成可滾動的，因此絕緣線管的安裝和拆卸非常容易。