套栓 meaning in Chinese

anchor peg
anchored peg

This product has an obvious advantage in quality and shape to the traditional steel support . the product is recommended to use in the windows with standard level hinge and friction steel support . when the window is closed , the friction steel support can be totally hidden and is very slippery to open or close
幕墙限位窗撑对于使用标准平铰，摩擦式钢撑的窗子，摩擦钢撑相对于传统的套栓钢撑更具有明显的质量，外观的优势，关上窗子后，幕墙限位的摩擦式钢撑完全隐蔽起来，开或关窗子时又非常顺滑。