Piav qhia:
1. Cov hniav roj hmab yog qhov yooj ywm zoo, thiab nrog kev nqus tau zoo thiab kev ntxuav muaj zog, daim txhuam cev muaj txheej tiv thaiv gridding txhim kho siv lub neej ntev.
2. Lub pob swivel tuaj yeem ua rau nws tig mus rau 90 ° kom txuag tau qhov chaw hauv qhov ntev.
3. lub tshuab ntxuav qhov rai yog ua los ntawm txhuas, pp thiab daim txhuam cev thiab lwm yam.
4. qhov rai ntxuav yog siv dav los ntxuav qhov chaw du xws li iav thiab lwm yam
5. lub tshuab ntxuav qhov rai nruab nrog lub tes tuav telescopic aluminium telescopic alu, tuaj yeem hloov kho qhov ntev twg muaj rau ob yam khoom.

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