预(Yu)制(Zhi)混(Hun)凝(Ning)土(Tu)停(Ting)车(Che)限(Xian)位(Wei)器(Qi)。(?)具(Ju)有(You)承(Cheng)载(Zai)力(Li)强(Qiang),(?)防(Fang)腐(Fu)蚀(Shi),(?)使(Shi)用(Yong)寿(Shou)命(Ming)长(Chang)等(Deng)特(Te)点(Dian)。(?)