Product Application

outdoor cast iron spiral stair metal spiral stairs are made of cast iron. Cast iron usually refers to grey cast iron. It tends to be brittle and hard on surface because of high carbon
content (about 3% whereas 0.15% in wrought iron). Cast iron is made by re melted pig iron, often along
with substantial quantities of scrap iron and scrap steel. After melting is complete, the molten iron is poured
into shaping molds. So once molds is ready, mass production is possible.

Why choose us.

1. Gold supplier on Alibaba,is a credit company;
2. Free samples for customer's check;
3. Our own factory with fence ornaments.