Hangzhou Siyu Chemical Co.,Ltd has 3 series products which includes more than 30 varieties. Our sealants widely use for construction, automotive, machinery, electronic, electrical equipment and solar photovoltaic industry and other industries. Our products are not only well applied in domestic market, even sold very well to Europe, North American, South American, Southeast of Asia, Middle East and so on. Meanwhile, our products have a very high visibility and reputation in the world market.