Shanghai SIHUA Precision Machinery Co., Ltd. focus on researching and developing roll forming technology and innovation for automatic high-speed flying shear roll forming machine. Shanghai SIHUA has an excellent research team, we can achieve at least 5 sets new machinery and apply 10 technical patents each year. We can Build 3D production line and very part. We have DATAM Copra software to design and analyse roller flows. SIHUA Annual sales more than 120 million yuan. Sihua machines are shipped to world wild and received unanimous praise.