SI YUAN HENG TANG was established in 2004. Our company specializes in the sourcing and supply of obsolete and in stock electronic components. After several years of development and excellent in service, we enjoy a high reputation both at home and abroad.To satisfy the demand of our steadily increasing business,  We have a representative office in HongKong(s A R )by the name of 3HC GROUP LIMITED. Our company s scale and business grows year by year with our healthy managem...