"Deepinfar bottom crawler" . . "Long Tunnel Detection System" . "Bai-Sha Max" . "Hai-Yi 1000-I" . . . "Hai-Yi 1000-II" . . . "Deepinfar unmanned vehicles" . "Hai-Yi 300" . "He-Tun IV-A" . . "Jiang-Tun IV-C" . "Hai-Yi 7000" . . "Hai-Tun II" . "He-Tun IV-B" . . "He-Tun V-B" . "Cheng-Sha I-A" . "Deepinfar unmanned vehicles" . "Hai-Tun III" . "Bai-Sha Mini" . "Cheng-Sha I-B" . . . "Cheng-Sha III-A" . "Deepinfar AUVs" . . "Deepinfar ROUVs" .