27 Mar What is Upvc border frame profile(Upvc profile types and series)
https://youtu.be/5k7Qo3b9LH4 We ll give you some basic information about how to make doors and windows. First of all you need to decide what type of material you ll use. Pvc, aliminum, wood.. If you ll produce pvc doors windows, you need to have pvc profiles, in this ...