Iyi inguva ichangobva kuvandudzwa screw rutsigiro system iri muTogo-shi, Japan. Ground screw inotsigira inogadzirwa nezvematirwo emamiriro ezvinhu emamiriro ezvinhu uye usingade kucherwa zvakadzika kana huwandu hwakawanda hwepasi, hunodzora nyika uye nekudzivirira kwenguva refu pane zvakasikwa nharaunda. Panguva imwecheteyo, iyo bracket zvinhu ndeyekutonga uye oxidation inodzivirira, ichipa hupenyu hwakareba.
Kutumira Nguva: Jun-07-2023