We are looking for a manufacturer who can produce the following Items ; 1- wheelbarrow tire & tube size 4.00-8 2pr cross pattern weight : 1.55 kg - 1.60 kg set (type of inner tube TR13) 2- wheelbarrow tire & tube size 3.50-8 2pr cross pattern weight : 1.55 kg - 1.60 kg set (type of inner tube TR13) Please send your price list to the