Proses produksi panel surya Nglereni otomatis Welding otomatis Splicing otomatis Laminated Tes EL Framing otomatis Isi Lem Otomatis Inspeksi Visual Packing Proses produksi tiang galvanis nglereni Reinforcing Rib Cutting Rolling Flange Shaping Flang Punching Flange Welding Welding Manual Polishing Spray Plastik Kab