high grade stainless steel, after shot blasting surfaces, not easy to be oxidized, delaying the metal rate The height of the hook can be adjusted, and the installation site can be adjusted Great for all kinds of tiles, no need to the surfaces, good waterproof, beautiful roof It can meet the needs of different roof structures Suitable for all kinds of framed solar panel to install on various types of roofs Suitable for installing the solar photovoltaic module bracket on various surfaces and steel roof Easy installation: Can be installed from any position of the aluminium alloy extrusion guide, flexible installation, bolt connection, no need to drill and welding, fast and time-saving, Manufacturer: Tsophreniq