Shanghai AIYIA Industrial Co., Ltd. is a high-tech joint-venture enterprise. We are a good fame and top steel manufacturer, and our main products: GI coils, PPGI coils, stainless steel coils, seamless steel pipes, welded steel pipes, stainless steel pipes, hot aluminized steel coils, cold steel coils and so on. We have many long-term buyers in Asia, Europe, the USA, Africa, South America, the Middle East and so on. Our company always put quality in the first place. We provide a full ...