Henan Speed Electronic Technology Co., Ltd is a professional manufacturer for 3 d printers, Suwit 3d printer as the sub-brand our co***ny, gets the high praised by domestic and foreign markets, with high precision, large size, dual nozzle, and all metal framework. Suwit 3D printer own invention patents "excellent nozzle head", "precision wire feeder", etc. And has passed the international CE product safety certification....