Trolleys, Walvik kuzamura hydraulic platform, Walvik guterura hydraulic platform, Walvik ibibuga byimodoka ikorera mu kirere, nibindi birashobora gutegurwa ukurikije ibyo usabwa, turi inyangamugayo, ubwiza nibiciro biri hejuru kandi bihendutse, uruganda rutanga ibibanza kugurisha mu buryo butaziguye