WUXI EASTHYDRAULIC MACHNIEY MANUFACTURING CO.,LTD.
Add:No.31,Wind energy road,HuiShan District,Wuxi
Tel:0510-83101137
Code:214000
Website:www.pinfactorystudio.com
② To ① open, in the opposite direction, ① to ② close, or ① port load; When the pressure at P port exceeds 1 / 3 of the load pressure, ① to ② open.