Long-distance telung piring lempitan bagean mburi, 1st lempitan baris 180 °, 3rd lempitan baris wis 135 °. Iki digunakake kanggo mbukak kothak sing gampang. Piring sabuk sisih ndhuwur sing digabungake karo desain khusus bisa diatur miturut kabutuhan produk, nyedhiyakake papan kanggo nginstal aksesoris jinis kothak khusus.