The function of closed suction motor make the residual water is leakproof, relaxed and humanization.
Technical challenges remain, including integrating a leakproof backup battery into the device and miniaturising the FREE-D’s control electronics.
The leakproof treatment: make sure that your products are not leakage, to the customer, way too tight.
The outlet of the water faucet is provided with a leakproof valve with a spring, the filter screen is arranged at the inlet of the water faucet.
The present invention belongs to a leakproof leaking stoppage construction technology, including two portions of new type water-proofing cementing agent and construction technique.
Since its establishment, the team has accomplished about 500 projects of lithologic reconnaissance, for example the high building of the second station of Hainan Military Command, and many complicated projects of dam grouting and leakproof in Hainan Province and other countries.
