https://fy-sci.en.made-in-china.com/product/EJYpsNRZgXUL/China-Double-Head-Hydraulic-Electromagnetic-Directional-Valve-34eo-H6b-34em-34ey-34bm-H10b-T-Hydraulic-Valve-Hydraulic-Valve-34-H6b-T-Series.html
Double Head Hydraulic Electromagnetic Directional Valve 34eo-H6b/34em/34ey/34bm-H10b-T Hydraulic...
Double Head Hydraulic Electromagnetic Directional Valve 34eo-H6b/34em/34ey/34bm-H10b-T Hydraulic Valve/Hydraulic Valve/34...-H6b-T Series, Find Details and...
https://www.uspto.gov/web/patents/classification/cpc/html/conH10Btoipc.html
CPC to IPC Concordance - H10B
cpcipcconcordance