水龙头按阀芯来分，可分为橡胶芯(慢开阀芯)、陶瓷阀芯(快开阀芯)和不锈钢阀芯等几种。影响水龙头质量关键的就是阀芯。使用橡胶芯的水龙头多为螺旋式开启的铸铁水龙头，现在已经基本被淘汰；陶瓷阀芯水龙头是近几年出现的，质量较好，现在比较普遍；不锈钢阀芯是近才出现的，更适合水质差的地区。

Faucets can be classified by valve core, including rubber core (slow opening valve core), ceramic valve core (fast opening valve core), and stainless steel valve core. The most critical factor affecting the quality of faucets is the valve core. Rubber core faucets are mostly cast iron faucets with spiral opening, which have been basically phased out now; Ceramic valve core faucets have emerged in recent years with good quality and are now quite common; Stainless steel valve cores have only recently emerged and are more suitable for areas with poor water quality.

　　水龙头是一个控制水的流止的阀门。英国盥洗盆或是浴缸的水龙头通常是冷、热分离的两端。在美国以及其他，大多是混合式水龙头。后者是在冷、热水混和后才出水，因此可以控制不同的温度来用水。而水龙头主要原料为铜与锌合金。

A faucet is a valve that controls the flow of water. The faucet of a British washbasin or bathtub is usually separated from the hot and cold ends. In the United States and other countries, most are hybrid faucets. The latter only releases water after mixing cold and hot water, so different temperatures can be controlled to use water. The main raw materials for faucets are copper and zinc alloys.

　　如果单独安装水龙头，自来水不一定是热的或是冷的。通常热的水龙头一般有一个红色指示灯或是符号，而冷水龙头一般有一个蓝色或绿色指示灯或是符号。在英语为母语的，水龙头也经常标有一个“H”或“C”代表热或冷。大多数住宅房、商业和工业屋门前都有个水龙头，他们都配有一个内孔为四角型的开关，以免路人乱用水。

If a faucet is installed separately, the tap water may not be hot or cold. Usually, hot faucets have a red indicator light or symbol, while cold water faucets usually have a blue or green indicator light or symbol. In native English speaking countries, faucets are often marked with an "H" or "C" to represent hot or cold. Most residential, commercial, and industrial houses have a faucet in front of their door, which is equipped with a square shaped switch to prevent passersby from using water indiscriminately.

以上是关于 上海良工阀门山东销售处 的介绍，若想了解相关知识可请点击：http://www.jnlgvf.com 我们将会全心全意为您提供满分服务，欢迎您的来电！

The above is an introduction to the Shandong sales office of Shanghai Lianggong Valve. If you want to learn more about relevant knowledge, please click: http://www.jnlgvf.com We will wholeheartedly provide you with full score service. Welcome to call us!