1, to see whether materials used in environmental health materials, purchase requirements to see environmental protection test report
2, how long is the shelf life of products? Some brands come out for one or two years, and they say they guarantee 10 years.
3, different series of products will be constructed for different areas, such as true porcelain glue, water porcelain, colored sand water porcelain, sheep and fat jade porcelain and so on, are all kinds of seams.
4. Does the beauty sewing brand have professional construction team? Only a regular professional company has a professional team.
5, how about the after-sale service of this product? How about pre-sale service?
6, we all believe that the price of a piece of goods, why the big price is high, because its value is high.