Yinto yini i-screw esingaphansi kwe-stainless steel esinamathisela okugezwa okungaphansi okungaphansi?

Ngokuvamile, uma kubalwa kwezinto ezincane, bonke abazi ukuthi kudinga isikhwama esikhwameni noma isikhwama. Kodwa ngesikhathi eside ngiphumelela isicelo esikwenzile kusuka kubuyiselwa okwenzile ukuthi kudinga isikhwama esingagezi ngesandla kanye nokwenza ukugcina okungaphansi, ngakho ngakwenzile i-screw yase-stainless steel esinamathisela okugezwa okungaphansi okungaphansi okwenzile.