Iposi ka-U, ebizwa ngokwecandelo elinqamlezileyo elinomfanekiso ka-U, luhlobo lwe-HEBEI JINSH star picket esetyenziselwa izinto ezininzi esetyenziswa kakhulu kwiimarike zase-USA. Imingxunya ebhobozwe yodwa kwipali iqinisekisa ukuba incamathiselwe ngokuthembekileyo kwintambo yocingo. Ngoko ke ingasetyenziselwa ukubopha ucingo lwe-wire mesh, ukulungisa izityalo, kwanokubopha imiqondiso yendlela, njl.
Iipali ze-U zingahlulwahlulwa zibe ziintlobo ezimbini: nge-spade okanye ngaphandle kwe-spade. I-spade edityaniswe ngokuqinileyo kwi-post inceda ukongeza uzinzo kwiingcingo ngokwandisa indawo yoqhagamshelwano emhlabeni. Ipali engena-spade inokuba lula kakhulu ukuyibethelela emhlabeni kuneyo ene-spade.