Firstly, look at the surface treatment of the door locks handle. Surface treatment is roughly divided into electroplating, spraying and coloring. The high quality home entrance door lock usually adopt electroplating, and the electroplating coating should be smooth, even and moderate, without bubbles, rust and oxidation signs.
Second, look at the door handle lock material. The lock materials on the market are basically divided into stainless steel, brass and zinc alloys. Stainless steel has high strength, strong corrosion resistance and no discoloration; brass is more versatile, mechanical properties are superior, and the price is comparatively higher; zinc alloy is strong and wear resistant, corrosion resistant, and easy to shape, and the price is cheaper than brass, and more modeling than stainless steel material.
The third is that you can feel the quality of the House entrance lock by lock and unlock it. Generally speaking, the heavy locks are relatively high in quality. Also feel the lock springs, if it’s flexible and smooth then the using cycles is also longer.