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