low cost china prefab folding 40ft modular container office house

email:shirley@ whatsapp/wechat: 8615192384158 website: all bolt connection to small items,take less space and don’t need crane for installation in mass production,the price is competitive can be combined together to make a big room,can be stacked 2-3 levels,can add bathroom,kitchen,partition easilyence for users in working.