JIANG SU SONG YU MECHANICAL TECHNOLOGY Co., Ltd Mechanical products and equipment research and development, design, sales, hardware products, pipe valve products, sales of electrical products, electrical appliances, metallurgy, machinery, chemical machinery, environmental protection machinery, hydraulic machinery, mechanical components manufacturing, processing, self-supporting and agent all kinds of goods and technology import and export business, but the state limit or prohibit import and export of goods and technology except.