Specs dan Harga Bor Bosch GSB 550 Professional Ovan Zaihnudin20 April 202220 April 202238 tayangan Bor Bosch GSB 550 (youtube: Agung Basir) Harga, bor, Bosch, mesin, impact, drill, perkakas, teknik, spesifikasi, review, produk, unit, mata, situs, online, e-commerce, beton, materi, material, baja, besi, kayu, motor, listrik, peluru