The 4mm copper tube is a new design, through excellent processing technology and high-quality raw materials, the performance of 4mm copper tube up to a higher standard. We are perfect for every detail of the 4mm copper tube, guarantee the quality level, so as to bring you the perfect product experience. Wuxi Baowang Steel Co., Ltd. is a professional China 4mm copper tube manufacturer and supplier, if you are looking for the best 4mm copper tube with low price, consult us now!