论文部分内容阅读
通化双龙化工股份有限公司是内最早生产沉淀法白炭黑的企业,也国内唯一定点生产国防化工用沉淀法炭黑的企业。曾为国防化工和载人航
Tonghua Ssangyong Chemical Co., Ltd. is the earliest production of precipitated white carbon black enterprises, but also the only fixed-point production of national defense chemical precipitation black carbon enterprises. For the national defense chemical and manned flights