... by anti-rust treatment,surface clean without sc metal part,LCD Frame, material used first grade SGCC,ROHS compliant ... all the stud make pull test, all use the CNC machine production no tooling costs. Can produce a variety ... 19 inch, 22 inch, 32 inch, etc. Products are mainly used in video game displays, ads machine, LCD TV ... sold to South Korea, the United States, Spain etc.Welcome inquiry!! metal part