Izithombe ezinemininingwane
Insimbi eyisiyingi ihlukaniswe yaba izinhlobo ezintathu: okugoqiwe okushisayo, okufojiwe kanye nokudonswa ngokubanda.Usayizi webha eyindilinga eshisiwe
5.5-250 mm.Phakathi kwazo: imigoqo emincane eyindilinga engu-5.5-25 mm ihlinzekwa kakhulu ngenqwaba yemicu eqondile,
ezivame ukusetshenziswa njengensimbi imigoqo, amabhawodi kanye izingxenye ezahlukene mechanical;amabha ayindilinga amakhulu kuno-25 mm
ikakhulukazi esetshenziselwa ukwakhiwa kwezingxenye zemishini namabhilidi amapayipi ensimbi angenamthungo Linda.