Characteristics 1. Be harmless to human, be friendly to environment. 2. Low material shrinkage, stable printing size. 3. Printing temp: 190~220?, lower than other flament. 4. No smoke or unpleasant smell when printing. Advantages 1. High line precision, standard deviation of diameter?0.05mm. 2. Improve tenacity of PLA, line luminous is 90%, do not change flament transparency. 3. Lower lament hygroscopicity, easy to keep long time by simple dust protection. Application 1. Apply to all types of FFF 3D printers, no need heating raft, low demand to printers. 2. Be applicable for models which have complex structures and high molding precision. 3. Match up with PVA, printing models which are hollow-out and have large inclination angles. 4. Match up with fexible flament, printing models combined with soft and hard flament. Parameter 1. Products can be divided into two specifcations according to line diameter, wire range of 1.75mm specifcation: 1.70~1.80mm, wire range of 3.00mm specifcation: 2.90~3.00mm. 2. Printing temp range recommended: 190~220?. 3. Printing speed: 60~90mm/s. 4. Build plate temp: non-required. 5. Printing substrate: non-required.