Uya posta, ethiywe ngokwecandelo lomnqamlezo omilise u-U, luhlobo lwemisebenzi emininzi ye-HEBEI JINSH yenkwenkwezi esetyenziswa kakhulu kwiimarike zase-USA. Imingxuma egqobhoziweyo yodwa ipali iqinisekisa ukuba uncamathiselo oluthembekileyo kucingo lokubiya. Ke inokusetyenziselwa ukukhusela ucingo lwe-mesh, ukulungisa izityalo, nkqu nokukhusela iimpawu zendlela, njl.
Izithuba ze-U zinokuhlelwa zibe zimbini iindidi: ngomhlakulo okanye ngaphandle komhlakulo. Imihlakulo edityaniswe ngokuqinileyo kwipali inceda ukongeza uzinzo kwiingcingo ngokwandisa indawo yokudibanisa emhlabeni. Ipali engenamhlakulo inokuba lula kakhulu ukubethelwa emhlabeni kunalowo unomhlakulo.