主要用于河海挖取污泥、铁板沙、石块，由于水底杂物黏洁阻力大，对材料要求较高。我公司疏浚抓斗采用日本技术，滑轮轴承采用迷宫式密封，大大提高了抓斗的使用寿命。

Dredging grabs

      It is mainly used dredge the sludge、iron plate sand and stone.Because the sticky resistance of the underwater sundries is big, thegrab should be made in high quality materials.Our company adopts Japanese technology ，Using labyrinth seal, pulley bearing and makes the time of use longer.