1.85火龙打金服网站_菠萝菠萝蜜免费视频高清观看1_好吊妞这里有精品视频_91精品国自产拍一区二区_日韩人妻无码中文字幕第一页_超碰福利成人_在线观看哔哩哔哩_亚洲色噜噜噜狠狠站欲八人妖_黄色网站亚洲欧美_午夜国产小视频在线观看黄

Features:

Coupling method: electromagnetic

The leaf spring type mechanical attachment to the wall ensures that the probe part and the borehole wall have a certain coupling strength, and the receiving effect can reflect the seismic signal more truly than the non-adherent.

Cable tensile capacity is greater than 250 kg

Three component signals are output separately, with little interference between channels

The probe is made of metal material, which is strong and durable.