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Investment casting, also known as lost-wax casting, is one of the oldest techniques and is widely favored for its ability to create complex shapes with smooth surfaces. Here, a wax pattern is coated with a ceramic material. Once the ceramic is hardened, the wax is melted away, leaving a cavity that is then filled with molten aluminum. This process allows for high detail and accuracy and is often used in industries where precision is paramount, such as aerospace and medical devices.

9, tight and reliable. It has two sealing surface, and the sealing surface material of the ball valve is widely used in a variety of plastics, good tightness, and can achieve complete sealing. It has also been widely used in vacuum systems.

Other sectors, including plumbing, military, and consumer goods, have also embraced sand casting for its ability to produce durable components in various sizes and shapes. Industries that require custom metal parts often prefer sand casting because it allows for the creation of unique designs without the need for expensive tooling.