... , cambered surface, sphere, stainless steel, iron, copper, aluminium, titanium alloy, can doing 3D embossment, and line engraving, bevelling, drilling ... depth can control optionally, to reach the artistic effect .5.Also can for woodworking/metal/advertising/glass materials processing. ... design, better to protect the machine driving part. 5. Well selected electrical accessory, let the failure rate ...