Overview Bridge crane, nke a na-akpọkarị "ịnya ụgbọ ala", bụ ụdị igwe na-ebuli elu nke a na-ejikarị eme ihe na ụlọ ọrụ mmepụta ihe na ebe a na-egwupụta akụ, usoro ọrụ ya nwere sistemụ ịnya ụgbọ ala atọ nwere onwe ya, sistemụ ịnya ụgbọ ala, nko drivi ...
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