Tendering scope: import coal cutter for Long DE ShenMu County mining co. Ltd.
招标范围：陕西神木县隆德矿业有限责任隆德煤矿进口采煤机。
2
The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
采煤机截齿截割煤体时，截齿承受随时间而变化的动载荷。
3
Stainless steel column, no spark cutter, scraper to be strengthen development, master some of the coal mining equipment spare parts re-manufacturing technology with a strong production capacity.