bearing bush half for main bearing
bearing bush lower half
bearing bush upper half
bearing shell lower half
bearing shell upper half
bush for front bearing lower half
bush for front bearing upper half
bush for rear bearing lower half
bush for rear bearing upper half
bearing bearing of pile
桩的承载力
聚对苯二甲酸乙二醇酯(PET)
聚对苯二甲酸乙二醇酯
half - cantilever half - support