Xov xwm

Muaj ntau hom kev faib tawm ntawm Bolts

Raws li lub zog ntawm kev sib txuas, nws tau muab faib ua qhov zoo tib yam thiab hinged qhov. Raws li cov duab ntawm lub taub hau: muaj hexagonal taub hau, puag ncig lub taub hau, square taub hau, ...

Bolts yog dab tsi?

Bolt: Ib feem ntawm txhua yam, ib lub cylindrical threaded fastener nrog cov txiv ntseej. Ib hom fastener uas muaj lub taub hau thiab lub hau ntswj (lub tog raj kheej nrog cov xov sab nraud), uas y...