curved plate proof press 曲面版打样机 ; 圆筒版打样机

proof plate 样板 ; 板状的样品 ; 样版

Fire-proof plate 防火板

curved d plate proof press 曲面版打样机

Rain-proof plate 防雨板

Armour plate shell-proof test 装甲板抗炮弹性能试验

acid proof rubber plate 耐酸橡胶板

CPS heat-proof compound plate CPS隔热保温复合板

frost-proof glass plate level gauge 防霜玻璃板液位计