Ihe mejupụtara kreenụ crawler: kreenụ crawler nwere otu ike, usoro na-arụ ọrụ, ọganihu, ihe ntụgharị, na akụkụ ndị na-ebu n'okpuru.Crawler boom Iji chịkọta ihe owuwu truss nwere ọtụtụ ngalaba, enwere ike ịgbanwe ogologo ya mgbe emezigharị ọnụ ọgụgụ nke ngalaba. E nwere ...
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