Yi daidai da tanadi da buƙatun GB / T20234.2-2015, yana iya cajin duk EVs da aka ƙera a cikin china, daidai da inganci tare da babban jituwa.
Yin amfani da tsarin matsa lamba ba tare da wani dunƙule tare da kyakkyawan bayyanar ba.Ƙirar hannun hannu ta dace da ƙa'idar ergonomic, toshe cikin dacewa.Shugaban fil ta amfani da ƙirar rufi don hana hulɗa kai tsaye tare da hannu.Abokin ciniki yana iya shigar da cajin gbt a ciki ko waje, bisa ga ainihin buƙata.Tsayayyen kulle caja akan jirgin baya na shigarwa na iya hana sata.