Liaoning Grand trade Co., Ltd is a company is a high-tech and exporting enterprise integrating product research, design, manufacturing, sales and service. Our main product：Mechanical seal,Seal supply system ,Welded metal bellows,Magnetic oil seal,Seal parts of mechanical seals,Mechanical equipment and spare parts etc. The products are applied in many fields such as petroleum, chemical industry, electric power manufacturing, refrigeration, shipbuilding, aviation, aerospace and so on.We have established long-time and stable cooperation relationship with many European ,american and Asian customers.