GB/T 20961-2018
单绳缠绕式矿井提升机
Single-rope mine drum hoist
2018-03-15
GB/T 35737-2017
多绳缠绕式矿井提升机
Multi-rope mine drum hoist
2017-12-29
JB/T 13006-2017
井下电器防爆单绳缠绕式矿井提升机和矿用提升绞车
Underground electrical explosion-proof single-rope mine drum hoist and mine winder
2017-01-09