Repir Spike

Lub rail spike yog ib yam khoom siv fastening uas txhim kho txoj hlua rau cov neeg pw tsaug zog los ntawm kev nkag mus los ntawm cov khoom siv los yog

Puas yog railroad spikes cam khwb cia?

Yog railroad spikes ua los ntawm hlau

Dab tsi yog txoj haujlwm ntawm spikes hauv kev tsheb ciav hlau?

Yuav ua li cas yog feem ntau railroad spikes ua los ntawm?

Dab tsi yog railway spikes ua los ntawm?

Dab tsi yog ob hom rail spikes?

Puas yog tus kab mob kis tau?

Dab tsi yog qhov sib txawv ntawm cov ntsia hlau spikes hauv kev tsheb ciav hlau?

Lub r ail spike yog ib qho ruaj khov steel fastener siv los clamp rails rau cov ntoo lossis pob zeb pw, tswj kev ntsuas ntsuas, tiv thaiv cov khoom hn

Dab tsi yog qhov ntsia hlau ntsia hlau?

Dab tsi yog spike nyob rau hauv railway?