hard vegetable oil硬植物油
Hard Wax Oil硬质蜡油
hard oil putty干硬性油腻子
hard oil finish干性油饰面
hard oil finish detail干性油饰面
hard oil sand坚硬含油砂层
hard coat antirust oil硬膜防锈油
Hard alloy grinding oil硬质合金磨削油
high-precision hard-drawn oil urn高精度冷拔油缸