FAQ--About Company ,payment and so on. 1, Are you a manufactures or trading company?    A: We are prpfessional manufacture in China. And we have been in this field in 1998. 2, What products are you specialized in?  A: We are product all kind of pipes. such as PEX-AL-PEX PIPE,PE-AL-PE PIPE, PERT-AL-PERT