Processing customization: Yes Model: D7 bending base Applicable models: Suitable for suitable models: Applicable matching relationship: Applicable item number: D7 bending base Color: fully enclosed retractor assembly + D7 bending base, semi-enclosed retractor assembly D7 bending base, fully enclosed retractor + fully enclosed bending base, semi-closed retractor + fully enclosed bending base or not? Is it patented? +45 steel