YDD7.4(A) Mine power disaster acoustic and electrical monitoring instrument

Shandong Tianhe Science ＆ Technology Co., Ltd.

Intelligent Complete Conveying Equipment for Ultra-Long Working Faces

Ningxia Tiandi Benniu Industrial Group Co., Ltd.

Household Natural Gas Detector CH4

Jinan Benan Technology Development Co., Ltd.

Mining anchor cable SKP18-1/1860

TianJin RuiTong prestressed steel strands Co.,LTD.

Seamless Steel Pipe

Dexin Steel Tube (China) Co., Ltd.

2.7V 100000F (60wh) 60138 high-power energy storage power starting power supply (instantaneous high current), low-temperature discharge, long service life, 100000 times of use

Gonghe Power Co.,LTD

WZPKK Series Armored Assembly Platinum Resistor

Jinzhou Jingwei Instruments Co., Ltd.

Coal-fired Generator

Dongfang Electric Corporation Dongfang Electric Machinery Co., Ltd.

Artificial Intelligence-AI Service Platform

YUNDING TECHNOLOGY CO., LTD.

Mining Ventilation Shaft Drilling Rig

CCCC Tianhe Mechanical Equipment Manufacturing Co., Ltd.

Clean Coal Power

DONGFANG ELECTRIC CORPORATION

Bend pipe series

Hebei Guanghao Pipe Fittings Co., Ltd.