Ningbo Leway Manufacturing LTD ne kwararren manufacturer cewa ƙware a samar shawa kofa sassa ciki har da shawa kofa rollers, iyawa, hinges da sauran kofa da taga hardware. An located in Ningbo birni, lardin Zhejiang, 20 kilomita daga Ningbo tashar jiragen ruwa da kuma 2 hours 'drive daga Shanghai filin jirgin sama. Kamfanin maida hankali ne akan wani yanki na 10,000 murabba'in mita, mallakan fiye da 100 balagagge gwani ma'aikatan, kuma yana kan shekaru 15 na kwarewa a samar da shawa kofa sassa.