タイトルまたは説明

we provide customers of the structure pipes, fluid pipes, middle the low pressure boiler pipes , high-pressure boiler tubes, alloy pipes, welded pipe and stainless steel tubes, and so on several broad categories, there are more than 1,**0 specifications of the various types of seamless steel pipe diameter, used in many areas of the national economy,such as chemical, machinery, construction, utilities, shipbuilding, oil fields and so on.