 E kere ha dabeere na mbụ dị na ngwá, nke bụ ihe ịga nke ọma mma nke cutter isi nnyefe, nusoro shiee na lubrication wdg The ngwaahịa e tinyere nime ọrụ na gburugburu ịgbado ọkụ anwụrụ mmepụta akara nke SINOPEC Shashi Petroleum Steel Pipe Factory. 