EPSILON型大標距伸縮儀3542L

gaishensuoyikeyongyujinshucailiao，fuhecailiao，suliaohetaocicailiaodebianxingceliang，shiyongyulashenheyasuoshiyan。caiqushuangwanqujiegousheji，jiangunaiyong
，keyurenheshiheshensuoyichuanganqidedianziyuanjianjianrong。