We are RuiLong Trading Co., Ltd. based in yulin , China. We are member of Tradekey.com since June, 2009. Our business is related to Industrial Machinery industry and we specifically deal in coal tar;calcium carbide;ferro-silicon;calcium silicon. Please find our product details below:Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.