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煤科院常州自动化所制定出两项新的部颁标准。它们是“MT166-87矿用聚乙烯绝缘聚乙烯护套通信电缆”和“MT167-87矿用本质安全型压接式电缆接、分线
ASTRI Changzhou Automation has developed two new ministerial standards. They are “MT166-87 mine polyethylene insulated polyethylene sheath communication cable” and "MT167-87 mine intrinsically safe crimp-type cable, sub-line