Sinking-4 (沉-4, or Chen-4) bottom mine is a small naval mine with none contact fuses, and it is jointly developed by the 710th Research Institute and the Eastern Wind Instrumentation Factory (东风仪表厂).
It is jointly developed by the 710th Research Institute and the Eastern Wind Instrumentation Factory (东风仪表厂). Sinking-4 (沉-4, or Chen-4) bottom mine is a small naval mine with non-contact fuses.
Sinking-4 (沉-4, or Chen-4) bottom mine is a small naval mine with non-contact fuses. It is jointly developed by the 710th Research Institute and the Eastern Wind Instrumentation Factory (东风仪表厂).
Sinking-4 (沉-4, or Chen-4) bottom mine is a small naval mine with non-contact fuses. It is jointly developed by the 710th Research Institute and the Eastern Wind Instrumentation Factory (东风仪表厂).