Great Wall brand hardware tools have already won dozens of provincial and national honors. Our company owns over 130 patents of all kinds and 15 of them are invention patents. We have registered Great Wall brand in 52 countries. Up to now, we have contributed a lot to the development of 12 national and industrial standards. We have achieved EEC certificate issued by EU early in 1988 and our products are the first one to obtain international certification in the domestic industry. Furthermore, we are the only enterprise in China that passes the certification of quality, environment and occupational safety and health management system at the same time.