High-quality liquid asphalt sales | Xin Yuan in the warm asphalt Asphalt | Baoding quality medium temperature pitch | Xin Yuan quality assurance and affordable asphalt | environmentally friendly electric ink electrode | compliance of the Asphalt | Xin Yuan Refractories | medium temperature asphalt sales | Baoding Xin Yuan sales the temperature pitch Court's existing medium-temperature asphalt 5000 t | high-temperature asphalt sales | supply standard medium temperature asphalt to buy in the temperature pitch Xin Yuan Company | quantitative production temperature pitch | into a mass-market medium temperature pitch | Xin Yuan Xin Yuan sold in the temperature pitch | Xin Yuan in temperature pitch Manufacturers | Xin Yuan-temperature asphalt company | supply temperature asphalt manufacturers | Xin Yuan in the warm asphalt manufacturers | Baoding quality medium temperature pitch | medium temperature asphalt Shanxi temperature pitch Baoding Sales | medium temperature asphalt manufacturers Xin Yuan | high-temperature asphalt Beijing in the warm asphalt sales | Hebei Supply Medium temperature pitch | Baoding sales quality in temperature pitch | Xin Yuan Inner asphalt Xin Yuan Sales | Wuhai in temperature pitch Xin Yuan supply | GB-temperature asphalt bitumen | Xin Yuan Hebei temperature pitch | Xin Yuan in temperature pitch off Shandong | Xin Yuan in the warm asphalt sales Zibo quality Medium temperature pitch | Xin Yuan in temperature pitch supply | Xin Yuan in temperature pitch Heilongjiang Sales | Xin Yuan quality construction modified asphalt | Xin Yuan's supply modified asphalt | standard modified asphalt | Xin Yuan factory Hebei temperature asphalt manufacturers Xin Yuan | high-temperature asphalt | GB Asphalt | Asphalt Xin Yuan Xin Yuan brand company | professional production and sales in the warm asphalt | asphalt production electrodes dedicated sales Qingyuan County Xin Yuan Refractories Co., Ltd. was established in 1999, has been adhering to the "integrity management, practical work" principle and philosophy, by the support and trust of our customers, the monthly throughput of more than 5,000 tons, welcome new and old customers to negotiate. Products: asphalt in temperature, capacitance magnesia, industrial naphthalene, hot asphalt powder, graphite electrode regeneration. 
 Temperature tar in distillation residue is part of the asphalt, tar yield accounted for 54 to 56%, which is more than three-ring aromatic compounds and oxygen, nitrogen, sulfur-containing heterocyclic compounds and a small amount of polymer material composed of carbon. The molecular weight of the asphalt components between 200 to 2000, up to 3000. The softening point temperature is based on a different pitch division. Softening point of 65 ~ 90 ℃ in temperature for the asphalt.