Spacing body Material: aluminum alloy; features: the product is processed by typical combined extrusion with great deformation in both upper and lower parts. -Application: a typical extrusion, applied in accessories of nuclear power station and machinery together with damper. -Client Problem: the product is of great deformation in both upper and lower parts, thus the process is complicated. -QH Solution: through combined extrusion process, QH realizes once forming. -Benefits: low material consumption and high production efficiency