The invention related to a microreactor system for the continuous synthesis, which provides defined reaction chambers and conditions for said synthesis, as well as to the uses of said microreactor in carrying out a chemical reaction. The coating is composed of at least one layer comprising a cubic c-N-phase without a co-existing amorphous phase. When the pump shaft rotates in a forward or reverse direction, the pistons reciprocate to supply hydraulic oil sucked from a tank to a suction port of an operation control valve. Therefore, when the apparatus is coupled to an end of a water conduit, such as a water spigot or hose, water is allowed to flow through the conduit when the air or water temperature is at or near freezing to prevent the conduit from bursting due to water freezing and expanding within the conduit. In addition, a roof rack member extends from the upper surface of the molding.