Chinese naval mine systems, but it does have the ability to incorporate the contact fuse, a feat that the Sinking (Chen-4) bottom mine lacks. Furthermore, Sinking-5 (Chen-5) bottom mine is developed by Fengxi Machinery Factory (汾西机器厂) can also be used on land as part of booby traps. The evaluation of this mine was carried out under combat conditions - these mines were deployed in Cambodia and Vietnam during the Vietnam War and the customers were satisfied with the performance, and as a result, the mine was considered an achievement and won a national award in 1978. Chen-6 Another shallow-water bottom mine. See also Naval weaponry of the People's Liberation Army Navy §Mine warfare References Mine, Chen, bottom