Can I apply for a patent by combining two patented products of others to make my own product? Infringement of rights?

First, if you don't have this combination now, you can consider applying for a patent for utility model, but you should explain the objective technical effects and advantages that can be obtained by using this combination.

Second, if this combination can achieve significant objective technical effects (compared with existing similar products), we can also consider applying for an invention patent (because the authorization of invention patents requires a higher degree of innovation).

Third, according to what you said, if only two patented product schemes are combined to get a new product scheme, and there are no other adaptive adjustments or improvements, then the products produced according to this combined scheme are likely to infringe on two patents of others.