Lus piav qhia luv luv:

Spherical lug ceev muaj lub rooj zaum kheej kheej. Kuj tseem hu ua pob lub rooj zaum cov txiv ntoo lossis lub vojvoog cov txiv ntoo, cov txiv ntoo no muaj lub taub hau hexagonal thiab lub rooj zaum puag ncig. Thaum lub taub hau zoo ib yam li cov txiv ntoo conical, koj tuaj yeem qhia ob qho tib si los ntawm kev saib lawv cov rooj zaum. Spherical lug nuts yog lwm hom lug txiv ntoo.

Round lossis dome-shaped lug txiv ntoo tsim yog zoo tagnrho rau ntau yam kev siv. Txawm li cas los xij, koj yuav pom cov noob txiv ntoo ntawm txhua lub log nrog dome-shaped lug qhov. Lawv kuj yog ib qho ntawm cov tsheb European uas tsis siv lub log ntsia hlau qhov chaw. Zoo li conical lug ceev, spherical lug ceev yog yooj yim rau nruab.

Fortune Auto muaj ntau hom log log ceev, rau ntau hom thov hu rau peb!