I do not buy the wrong time, the two do not buy your fault. Ji 宁浩博 Mining Machinery Co., Ltd. in the "strong quality of the image outside," and "quality first, credit first" business purpose of implementing the principle of "relying on quality of survival, relying on the credibility of development" for our customers providing quality products and services, sincerely welcome new and old customers to visit the plant, business negotiations. You have any questions about the company and products need advice, please feel free to contact me. Let me take you to understand this product: Product Overview BHD flameproof bus box for coal mine and its surrounding medium is methane, coal dust and other explosive mixture of gas environment, in AC 50Hz, voltage up to 127-1140V supply lines for signal lighting, power equipment, etc. for cable connection and branching purposes. BHD flameproof housing mainly by bus box lid, internal wiring and grounding, cable entry devices and other components. Case, the lid is made of gray cast iron HT250, internal wiring devices for glazed ceramic insulator. These are the details of this product, if you have any questions, please call us or come visit our company. Haobo company has been adhering to: customer is God, is the enterprise god, more customers, more prosperous companies. Haobo people have always believed: the principle of quality first, to ensure the effective operation of the system. Company products are sold in Shandong, Guizhou, Xinjiang, Yunnan, Sichuan, Jiangsu, Guangxi, Inner Mongolia, Shaanxi, Shanxi, Liaoning, Hebei, Henan, Guangdong and other provinces in the country, sincerely welcome friends from all over the country to inquire business negotiations.