A.鋼絞線或消除應(yīng)力鋼絲B.細(xì)鋼筋C.粗鋼筋D.冷拉鋼筋
A.梁式臺(tái)座B.板式臺(tái)座C.鉤式臺(tái)座D.槽式臺(tái)座
A.5~10mB.10~15mC.30~50mD.50~150m