Bathtubs are divided into many types. Cast iron: advantages, smooth and flat, warm color, anti-fouling, easy to clean, long life; Disadvantages, the highest price, hardness and thermal insulation is not as good as acrylic cylinders, color and shape are limited by the process, so it is relatively single; And bulky, not suitable for installation and handling. Pay attention to the finish and flatness of the glaze, pay attention to the small cracks and defects, and never buy cast iron cylinders with orange peel patterns on the surface. Folding class: the cylinder body material of the folding bathtub: double-layer tarpaulin is adopted, and the sponge is attached as the cylinder body, the thickness of the sponge is ≥ 5mm, and the tarpaulin is brightly colored. The surface is wrinkle-free, non-cracking, and the zipper pulls back and forth freely. Folding bracket: The load-bearing support frame is composed of stainless steel square pipe 25mm × 25mm and 22mm × 22mm, and the upper part is composed of a stainless steel cylinder round pipe 20~22mm combination, the surface is smooth, and the folding part is folded freely. Backplane: made of stainless steel round or square tube welding, can be flipped freely, fixed firmly. Waterproof bra breaking force: ≥ 450N/50mm, elongation at break: ≥15%. Folding bathtub has applied for a national utility model patent.

Ceramic bathtubs have become obsolete due to their bulkiness, material-intensive and fragile, and have been replaced by materials such as acrylic, cast iron enamel, and steel plate enamel. Acrylic material is polypropionate on the surface, and resin gypsum and glass fiber are used on the back to enhance the load carrying capacity. The thickness is usually 3 to 10 mm. Its advantages are: easy to form, slower heat dissipation and good thermal insulation performance, water temperature can be maintained for a long time, contact its surface without cold feeling, warm to the touch, and easy to scrub and clean, etc., light weight, easy to install, rich color changes. Due to the above characteristics, acrylic bathtub cost is cheaper, the disadvantage of this material is easy to hang dirty, not resistant to wear, after using some time, easy to appear gray on the surface. Steel plate bathtub is made of a certain thickness of steel plate molding, and then plated on the surface of the enamel. Features: easy to form, cheap cost. Because its surface is enamel, it is not easy to hang dirty, easy to clean, not easy to fade, and the luster is long-lasting.