防爆电动卷扬机
explosion-proof electric hoist
D11D磨煤机防爆
Precaution Against Explosion in D11D Pulverizer
防爆防腐
explosion proof and corrosion protection
防爆防火灭火装置
explosion-proof and fireproof and fire extinction device
防爆机械手
anti-explosion manipulator
内燃机防爆剂
antiknock substance for internal combustion engine
氧压机防爆
Anti explosion of oxygen compressor
吹气卷扬机
pneumatic flotation machine
大吨位智能卷扬机
large-tonnage intelligent hoist
单卷扬机运行法
single-hoist operation method