張zhang家jia港gang單dan梁liang起qi重zhong機ji銷xiao售shou及ji維wei修xiu改gai造zao,本ben公gong司si主zhu要yao經jing營ying單dan,雙shuang梁liang橋qiao式shi,門men式shi起qi重zhong機ji各ge種zhong型xing號hao起qi重zhong機ji配pei件jian,液ye壓ya升sheng降jiang平ping台tai,液ye壓ya升sheng降jiang貨huo梯ti,液ye壓升降手推液壓叉車。