Aluminum and hot-dip galvanized steel are the two dominant materials for solar mounting structures, each suited to a different combination of structure type and site conditions — aluminum’s light weight and natural corrosion resistance favor rooftop and rail-based systems, while steel’s structural efficiency favors large ground mount and carport frameworks. This guide compares the two materials by weight, corrosion resistance, strength and cost, helping EPC contractors and procurement teams match material choice to their project’s actual structural and site requirements rather than defaulting to one material across every project type.

Importing electrical conduit from China is generally simpler than sourcing cable tray or solar mounting systems since it doesn’t require project-specific engineering confirmation, but conduit type verification — making sure the shipped product matches the specified standard such as KBG, JDG or SC — deserves the same attention as dimensional accuracy. This guide covers MOQ, lead time, packaging, and inspection considerations specific to conduit, helping buyers avoid the connection-system mismatch risk that comes from a substituted conduit type.

Conduit selection determines what type and size is right for the job, but bending, connections, support spacing and grounding continuity determine whether that installation actually protects the cables inside and holds up over time. This guide walks installation and EPC teams through the practical best practices for each of these four areas — including the thread-compatibility risk covered in our KBG vs JDG vs SC comparison — helping avoid the field errors that undermine an otherwise correctly specified conduit system.