盈彩彩票注册

What is a Ductile Iron Pipe?

What is a Ductile Iron Pipe?

盈彩彩票注册A ductile iron pipe is made of a kind of cast iron, carbon and silicon alloy, is an iron ore stone blast furnace smelting product. According to the different forms of carbon in pig iron, it can b...

What is a welded steel pipe?

What is a welded steel pipe?

Welded steel pipes are also known as welded pipes, which can be divided into longitudinal welded pipe and spiral welded pipes according to the type of weld joint; or furnace butt weld pipes, electric ...