主营产品，备件供应，充足库存
Foxboro（福克斯波罗）：I/A Series系统，FBM全系列（现场输入/输出模块）
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、
数据通信及处理等。
Westinghouse（西屋）：1C31系列DCS系统、CPU、OVATION系统、WDPF系统、
WEStation系统备件。
Triconex（英维思）:冗余容错控制系统、基于三重模件冗余（TMR）结构的现代化的容错控制器。
EMERSON（艾默生）:模块、卡件、驱动器等各类备件。
XYCOM：XVME系列
Bently（本特利）：3500/3300系统。
Rockwell（罗克韦尔）：ICS系统。
ABB：PM全系列DCS系统、IGCT高压变频器系列、工业机器人备件DSQC系列、INFI 90等。
Bailey（贝利）：BRC系列DCS系统等。
Allen-Bradley：1756、1785、1771、1746全系列系统等。
Yokogawa（横河）：CP系列等。
Honeywell（霍尼韦尔）：TK/TC/CC系统等。
Reliance（瑞恩）：57C系列等。
Schneider（施耐德）：140系列处理器、控制卡、电源模块等。
Modicon（莫迪康）：AS系列PLC系统备件。
Siemens(西门子)：6ES5/6ES7414/6ES7415/6ES7416系列PLC系统备件、
Siemens MOORE，Siemens Simatic C1，Siemens数控系统等。
Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。
XYCOM：I/O、VME板和处理器等。
GE（通用电气）：IC698/IC697全系列PLC系统、模块、卡件、驱动器等各类备件。
Yaskawa（安川）：伺服控制器、伺服马达、伺服驱动器。
Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。
Woodward（伍德沃德）：SPC阀位控制器、PEAK150数字控制器。
However, there are many problems, such as technical problems, safety problems, management problems, scale problems, environmental protection problems, etc. The mining technology of small coal mines is backward, the safety can not be guaranteed, the management is chaotic, the production capacity is too low, the destruction of resources and environment and other problems seriously hinder the healthy development of small coal mines, and the core problem is the technical problem. The backward mining technology of small coal mines restricts the improvement of safety, management level and scale, and can not guarantee the protection of resources and environment. 1.1 the mining method is backward. According to the author&＃39;s investigation, some small coal mines arrange roadways based on experience, and do not fully consider the geological factors such as coal seam inclination, coal seam thickness, number of minable coal seams, roof and bottom slate, nor the influence of mine pressure, ventilation and transportation; Some small coal mines have no formal design and dig when they see coal; Although certified small coal mines now have formal design, some small coal mines do not arrange roadway and mining according to formal design. According to the author&＃39;s understanding, wall blasting and machine mining are generally adopted in the design of small coal mines, and layered mining is adopted in thick coal seams. However, due to the limited capital, technology and management level of small coal mines, many small coal mines do not use single hydraulic pillar support, but use wood pillar support. In this way, roadway maintenance and roof support are more difficult, and the safety degree of working face is relatively low. Because the roof management problem is difficult to solve, wall blasting mining and machine mining are difficult to implement. Therefore, many small coal mines still use Roadway Mining (i.e. driving roadway coal). 1.2 the ventilation system is unreasonable. The ventilation system
