This is Crystal from Beijing ZhongGangDa International Trade Co.,LTD, Our company is one of the largest professional manufacturers of seamless steel pipe in China. The main products are all kinds of specification of pipes, such as ERW steel pipes, carbon steel pipes, welded steel pipes,seamless steel pipes, galvanized pipes,hex nuts and pipe fittings in ASTM, API 5L and European Standard.All are produced according to standard API5L or API5CT. The annual production capacity is 300,000 tons.If you are interested in our products,please feel free to contact us. We are looking forward your reply. We will provide you the best price and quality.
