Isetshenziswe kahle emikhakheni esezingeni eliphakeme eluhlaza, ingaphezulu yi-burr - mahhala futhi iqinile. Ukukhiya okukhiya ukuvala isiqeshana se-Spring design ngamandla amakhulu acwebezelayo, angamelana nengcindezi enkulu nenamandla ngaphandle kokudideka. Ukucutshungulwa kwengcezu eyodwa, usayizi ojwayelekile, ukunemba okuphezulu, okuhlukahlukene kwentambo imininingwane kanye nama-calibres atholakala ezinhlobonhlobo zezicelo.
