WE,OZCANPEN, MANUFACTURE PVC DOORS AND WINDOWS. OUR MAIN PRINCIBLE IS QUALITY.IF YOU WANT TO BUY THE QUALITY WITH PLAUSIBLE PRICE, PLEASE CONTACT WITH US AND JUST GIVE THE SIZES, LEAVE THE REST TO US. CLEARLY THE CUSTOMER WILL GIVE THE SIZES AND SAY JUST HOW MANY THEY WANT IT, WE WILL PRODUCE THE GOODS AND DELIVER THEM INCLUDING THE SHIPPING OR EXCLUDING IT.