1.This chassis is used as caravan trailer chassis ; 2.It can be designed and produced according to the upbody type ,including box ,tank ,house etc. 3.The surface treatment can be KTL coating ,HDG treatment etc. 4.We design special plywood pallet to package it ,usually 10 pieces per pallet ; 5.The chassis is welding on robot welding machine to guarantee the welding quality ; 6.The material can be carbon steel ,galvanized sheet ,aluminum etc.