. Surface of flow channel is hard chrome plated, with thickness of 0.02-0.03mm, hardness 60-65 (ROCKWELL); Outside die surface chrome plated thickness 0.01-0.02mm, facilitating maintenance and corrosion prevention.
2. Lip surface finish precision reaches 0.05-0.1(μm), other surfaces 0.12-0.18(μm).

3.up mould lip can adjustalbe,down lip can changeable,can produce the sheet's thickness is

3-9mm width is 1200-3600mm