9787564632915 - 近距离煤层无墙体沿空留巷理论与关键技术 (1 resultados)
- Tapa blanda
Librería: liu xing, Nanjing, JS, Chinaliu xing
Contactar con el vendedorVendedor de 5 estrellasCondición: Nuevo
EUR 63,57
Envío por EUR 15,57Se envía de China a Estados Unidos de AmericaCantidad disponible: 3 disponibles
paperback. Condición: New. Paperback. Pub Date: 2016-10-01 Pages: 212 Language: Chinese Publisher: China Mining University Press close seam-free wall for Gob theory and key technology based on application of the results at home and abroad for Gob technology . to close coal seams no wall space left along the lane to carry out res…earch new technology scientific research. to close open seam along goaf .
