To simplify a special tool and a complex manufacturing process, by storing and retaining in a molded external casing, an internal member equipped with a fluid inlet, a fluid outlet and a passage through which the inlet and the outlet are communicated with each other.
An external casing 316 is molded by using a copper alloy and so on, and has a storage space 317 for storing water faucet main body part 318 in its inside. Also, upper and lower ribs 320, 321 are arranged along a longitudinal direction for retaining the water faucet main body part 318. The outside casing 50 of the water faucet main body part 318 is so prepared that polyphenylenesulfide(PPS) is injection molded, and a detent member 322 is integrally formed on the peripheral surface of the outside casing 50. One end of the water faucet main body part 318 is inserted from the opening part of the end part of the external casing 316, and the external casing 316 and a water inlet 51, and a hot water inlet and a water flowing outlet 170, are matched to each other. The external casing 316 is a mold product, however it required no mechanical work, therefore a manufacturing process can be simplified, the degree of the freedom of a design is enlarged, and a cost can be reduced.
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