... HardwareB We are equipped with the latest technology and machinery ... convex, concave, turning, vertical cutting, Oblique angle cutting, drilling, gun drilling, tapping, assembly, welding, riveting, punch, stamping, bending ... , stretching, forging, die casting, mold design and processing, sheet metal working etc. ... 7005, 7075. Especially No.6063 or No. 6061 is the principal alloy ...