ข้อมูลShifting conveyors or other transport devices from one location at the working face to another (guiding mining machines along conveyors for the cut mineral E21C0035120000; in combination with mine roof supports for step-by-step movement E21D0023000000)


เวอร์ชั่นข้อมูล

เวอร์ชั่น รหัส / code คำอธิบาย / code name เครื่องมือ
1 E21F0013080000 Shifting conveyors or other transport devices from one location at the working face to another (guiding mining machines along conveyors for the cut mineral E21C0035120000; in combination with mine roof supports for step-by-step movement E21D0023000000) 29/09/2562