Water nozzles (commonly known as faucets ), although inconspicuous, are essential domestic water appliances for residents and public places. On December 4th, the reporter interviewed the Quality Supervision Department of Lanzhou Quality and Technical Supervision Bureau on how to purchase the faucet. The relevant personnel provided five kinds of purchasing methods to consumers.

The staff said that when purchasing, it is necessary to distinguish between good quality through "seeing", "touching", "listening" and "making". "Look" is to look at the surface, the surface of the nozzle is generally made of electroplating treatment, the coating process of good quality nozzle is higher, the surface gloss is uniform, no pores and oxidation spots. “Touching” means touching the hand. The main components of the good quality nozzle, such as the shell, handle, joint, etc., are all cast in brass. When purchasing, it can be compared with the weight. The proportion of brass is relatively large, and it will be obviously heavy in the hand. The density of the alloy material is low, the feeling is soft and the center of gravity is even; the engineering plastic is lighter in the hand.

By hand pressing the surface of the product, it is also possible to check the quality of the surface of the plating, and the hand is pressed up and then removed, and the quality of the plating surface of the product which disappears faster is better. "Listen" is to listen to the sound, the good quality faucet should be cast in the whole brass, and the brass sounds low. If the sound is relatively crisp, it is made of stainless steel or alloy material, and the quality is relatively poor. "Try" is to check the valve plug fittings, the quality of the faucet valve core is precise, and the swinging handle can not feel loose, light and without block when driving the spool.

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