Li Junjie

Formula rail base can be folded in removal

Spring formula railing polycrystalline substance that can reset

Rubbish bung structure that hydro -cylinder slows down

Hidden garbage bin bucket skull individual malposed tooth constructs

Outdoor railing of convenient quick installation

Novel flexible first reduction gears

Outdoor telescopic joint mechanism

Anti-deformation welding method of bench multi-plate welded pipe

Easily-pulled self-locking showing stand with handrails

Spring type retractable head of handle