Most domestic products are made of stainless steel, but they are expensive or cheap with thin wall thickness. In foreign countries, aluminum alloy is mostly used for high-end products, followed by spray coating, electroplating, or cladding for iron pipes. At present, alloy prices have risen significantly, and iron pipes are more commonly used. Internal screw type: Pull to the specified distance and lock the inner and outer pipes eccentrically, then rotate the screws of the inner pipe to make it support tightly.

Shower curtain rod refers to the telescopic support rod used to hang shower curtains, which is simple to use, inexpensive, and easy to replace. It is generally an inner and outer pipe structure, where a small pipe (inner pipe) extends into a large pipe (outer pipe), and the shower curtain rod is fixed using an inner buckle, spring, or screw, and then hung on the shower curtain. It is an ideal product in the era of cramped living, solving the problems of limited space and scattered water splashes.