1. Reliable manufacturer. Do not choose some cheap products whose quality may not be always good enough.
2. Appropriate products. You should select the most proper type according to your purpose.
3. Compare the price between the same products, and compare the quality within the same price.
4. The attitude of pre-sale and after-sale servicer. The customer servicer of a professional producer must be a quality person.
6 points to take into consideration for general lock selection:
1. The harmony between the lock and room decoration. According to your favors, you should take the harmony within the room into consideration when choosing the lock.
2. Its requirements for environment or other conditions. The situations of environment should be thought about such as the humidity, the door structure, thickness, and whether the door is left- or right-opened, inner or outer.
3. The situation of families. You should choose locks which are convenient for the possible aged, children or disabled.
4. Applicable place and its significance. That means you need to buy the products used for the gate, room, bathroom or pathway.
5. Economic capability. Combined with the family economic conditions, you can buy high or low grade products, but notice that no matter which kind you choose, the manufacturer of the locks should be experienced and professional and can offer stable products, so as to avoid financial losses and unnecessary troubles to daily life.
6. Reputation and service level of the manufacturer. This can help prevent some producers who from themselves offer some fake or cheap commodities to customers.