As a major manufacturer of fasteners( bolts, nuts, screws, thread rods etc.)Haining Colossal Import & Export Co.,Ltd well-equipped with a complete set of advanced production facilities, test equipment and strong technical force. With a wide range of product lines, good quality, reasonable prices, our products are extensively used in construction, machinery and other industries and widely recognized and trusted in domestic and aboard. We welcome new and old customers from all over the world for future business and mutual success!