Buried Fixed Installation Convenient installation can save the installation space, the three sides of the fixed plate uniform mounting holes can be free multi-position installation. Aluminium alloy cylinder body, fine polishing processing, hard oxidation treatment. Cylinder periphery with magnetic induction switch groove, induction installation is convenient, standard hole spacing, spring sealing compact, wear-resistant, small error. High precision claw head, flat air claw, carbon steel, hardness and accuracy of the combination of Combination of hardness and precision, no jamming, easy to close. With stronger cylinder, hard oxidised, fine workmanship., Manufacturer: CCZRD