1. Cov khoom siv no yog siv dav hauv kev tsim kho thiab kho kom zoo nkauj. Nws muaj siab hardness thiab zoo durability. Nws tuaj yeem txhim kho qhov hnav tsis kam ntawm cov ntsia hlau txuas mus rau qhov loj thiab zoo zam kev puas tsuaj ntawm cov xov txuas. Vim hais tias cov hlau xaim ntxig muaj qee qhov elasticity, nws tuaj yeem ua rau cov khoom xa tawm ntawm txhua lub voj voog ntawm cov xov zoo sib xws, thiab kev siv tuaj yeem txhim kho kev sib txuas lub zog thiab qaug zog ntawm cov xov.
2. Nws muaj zoo shockproof thiab firmness. Txawm tias thaum nws raug kev vibration muaj zog, nws cov ntsia hlau yuav tsis xoob, uas yog qhov zoo dua li cov txheej txheem kev ua haujlwm ntawm cov khoom siv xauv dav dav. Qhov no yog vim hais tias lub xauv hom steel hlau ntsia hlau lub tes tsho tuaj yeem xauv cov ntsia hlau hauv lub qhov threaded. Lub hardness ntawm steel hlau ntxig yog siab dua li ntawm cov ntsia hlau, yog li nws muaj tsawg dua hnav thaum lub sij hawm sib dhos thiab disassembly ntawm kev sib txuas nrog cov ntsia hlau thiab tuaj yeem siv ntau zaus.
