1. Coiled cov ntsia hlau yog lub npe feem ntau siv hauv kev tsim kho ntawm cov dej num tsim kho, qhia tias lub cheeb ntawm cov hlau bar tsawg dua kaum millimeters;
2. Vim tias cov hlau tuav hauv qab kaum millimeters yooj yim los khoov rau hauv lub voj voog, thiab cov hlau tuav tau xa mus ua coiled voj voog rau cov chaw tsim khoom;
3. Siv dav hauv kev tsim kho pej xeem cov tsev xws li tsev, txuas hniav, thiab lwm yam.
4.Qhov Coil Ntsia Hlau Rau Kev Tsim Kho
Hlau rau kev tsim kho, raws li lub npe qhia, yog rebar uas yog coiled ua ke zoo li xaim. Feem ntau, feem ntau ntawm cov hlau ntawm kev ua lag luam yog 6.5-8.0-10-12-14. Feem ntau, thaum lub sijhawm xa khoom, cov qwj ntaug qwj, feem ntau yog vim cov qwj ntaug qau thiab tsis tuaj yeem soj ntsuam. Nyob rau tib lub sijhawm, hauv kev ua lag luam niaj hnub no, tsuas muaj muaj peb qib ntawm cov qwj qwj.