Design and development of a two post rotary-percussion drilling rig

Detalhes bibliográficos
Publicado no:	Philippine Engineering Journal Vol. 16, no. 1 (1995), 103-118
Autor principal:	Borlagdan, Paterno
Formato:	Artigo
Idioma:	English
Publicado em:	1995
Assuntos:	Rotary percussion drills Irrigation equipment Spark ignition engines