麻豆国产96在线_国产高清成人毛片_天海翼视频在线观看_最新精品高清国产_我要看A级毛片特黄_日本成人三级电影在线_狠狠婷婷五月天激情综合_亚洲欧美日韩卡通动漫一区_日韩Aⅴ无码精品久久人_一区二区国产美女主播在线精品

Choosing a regular faucet is not only about appearance, but also about quality; Pay attention to the following five methods and steps when choosing high-quality faucets;
1、 Look at the surface; The surface of faucets is generally treated with nickel and chromium plating, and the plating process requirements for regular products are relatively high. The surface luster is uniform, without burrs, pores, and oxidation spots;
2、 Look at the touch; The main component shell of a top grade faucet is generally cast from brass. The higher the purity of brass, the better the electroplating quality, and the less prone the surface electroplating layer to corrosion; Subordinate products may use alloy materials and engineering plastics in certain places to reduce costs, which greatly reduces their lifespan and quality; It is recommended to choose faucets made of brass material as much as possible when purchasing; Brass has a large proportion, which can be estimated when purchasing. Brass is heavy and heavy when held in your hand, and you can feel the presence of the center of gravity; Alloy materials have a low density, feel soft, and a uniform center of gravity; Engineering plastics float lightly in your hand; In addition, components that come into direct contact with drinking water are not allowed to use zinc alloy materials according to national standards;
3、 Listening to sounds; A good faucet should be made of integrally cast brass, with a dull and deep sound when struck; If the sound is relatively clear and crisp, it is generally made of stainless steel or alloy materials, and the quality is inferior to another level;
4、 Touching edge and corner seams; The corners of first-class faucets are round and free of burrs, sharp edges, and other conditions; In addition, the joints between the main components are also very tight, without any looseness;
5、 Check the valve core accessories; The quality of the valve core is the key to the faucet, and the process of the high-quality faucet valve core is accurate. When the handle swings to drive the valve core, it can feel whether it is loose or tight, lightweight, and without obstruction.