Design and Experimental Study of 4/2 Water Hydraulic Directional Valve
CHEN Yuan-ling, WEI Wei, REN Rui-wen, LU Yu-hai, YANG Qing-song
CHINESE HYDRAULICS & PNEUMATICS . 2016, (6): 30 -34 .  DOI: 10.11832/j.issn.1000-4858.2016.06.006