Chinyorwa cheU, ine zita rinoenderana nechikamu cheU-shaped cross section, imhando yeHEBEI JINSH star picket ine mabasa akawanda inoshandiswa zvakanyanya mumisika yeUSA. Maburi anoboorwa ega padanda anoita kuti pave nechokwadi chekuti waya yefenzi yakabatana zvakanaka. Saka inogona kushandiswa kuchengetedza fenzi yewaya, kugadzirisa mafekitori, kunyangwe kuchengetedza zviratidzo zvemigwagwa, nezvimwewo.
Mapositi eU anogona kupatsanurwa mumhando mbiri: nespade kana kuti isina spade. Spade yakasungirirwa zvakasimba papositi inobatsira kuwedzera kugadzikana kwefenzi nekuwedzera nzvimbo yekubata pasi. Positi isina spade inogona kuroverwa zviri nyore muvhu pane ine spade.