Features of excavator grab: Hydraulic swing excavator grad needs to be equipped with 2 sets of hydraulic valve and pipeline . Cylinder with hydraulic one-way control valve can keep the grab stable and tight. Application of excavator grab: For grasping the construction remains,industry material and waste,the massive tough mud and stone. Jianhua Engineering Machinery Group Co., Ltd Contact: Eric(Sales Manager) Website: www.dg-jh.com E-mail: Ericzhang@dg-jh.com Tel:0086-0769-85614689 Fax:0086-0769-85655689