改性砂滤料
Modified Quartz-sand Filter Media
石英砂滤料
quartz sand media
Quartz sand straining material
涂铁砂滤料
iron oxide coated sand media
旋翼式纤维滤料滤池
rotary-wing shaped fiber filter
GAC强化砂滤池
GAC enhanced sand filter tank
granular activated carbon (GAC) intensified sand filter
玻璃纤维增强塑料砂浆锚杆
Glass fiber reinforced polymer GFRP bolt
超硬材料砂轮
superabrasive grinding wheels
超硬磨料砂轮
superabrasive wheel
super-hard abrasive wheel
superabrasive grinding wheel
superabrasive wheels
superabravise wheels
地埋式砂滤系统
buried sand-filter system