JYS21-25 Pressure reducing and regulating valve
JYSQ21-25B Air/Manual Operate regulating Valve
23ZS21-25D Two-position and three-way
34Z21-25 Three-position four-way control valve
34ZS21-40 Three-position four-way control valve
34ZR6Y-L8 Three-position four-way air valve
34ZR6Y-L8A Three-position four-way air valve
QKY21-25 Hydro-pneumatic pressure switch
Y40-20 Relief valve
Y25-20B Relief valve
Y25-20C Relief valve
Triplex pump
QYB50-60L Air operated oil pump
QYB40-165L Air operated oil pump
JYSM21-25 Pneumatic motor pressure control valve
JYSM21-40 Pneumatic motor pressure control valve
QYB8-350L Air operated oil pump
Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API OSHA IADC OPEC RIG ZONE WORLD OIL Drilling Formulas
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