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“平顶型金属可缩性支架”通过技术鉴定由中国矿业大学与潞安矿务局合作完成的国家“八五”攻关项目子专题“平顶型金属可缩性支架”通过了煤炭部组织的鉴定。该支架为矿工钢梯形双向可缩性支架，支架的滑移构件均为楔式，具有结构简单，成本低，重量轻，装卸及管理方便，...
“Flat-top metal scaffolds” passed the technical appraisal The sub-topic “flat-top metal scaffolds” of the “Eighth Five-Year Plan” project completed by China University of Mining and the Luan Mining Bureau was approved by the Ministry of Coal Industry The identification. The bracket is a steel trapezoid two-way retractable bracket for miners, and the sliding components of the bracket are wedge-shaped, which has the advantages of simple structure, low cost, light weight, convenient loading and unloading and management ...