DW-type external injection-type hydraulic prop 
 Hydraulic prop, within the note hydraulic pillar pillar outside the injection of hydraulic prop hydraulic suspension hydraulic prop, hydraulic pillar DW hydraulic prop 
 Sales Specialist: Hui Cheng buying hotline: 15269750901 0537-2383936 
 Address: Torch Road, Jining City, Shandong Province, No. 69 QQ: 1172792005 
 Wang No.: zhongmeigksy 
 DW-type external injection-type hydraulic prop is a constant external resistance for the fluid style pillars and beams with metal roof, for the coal mine coal face roof support can be used for mechanized mining face end shoring and temporary support care. 

 Main Model: DW35-200/100 
 DW31.5-200/100 
 DW28-250/100 
 DW25-250/100 
 DW22-300/100 
 DW20-300/100 
 DW18-300/100 
 DW16-300/100 
 DW14-300/100 
 DW12-300/100 
 DW10-300/100 
 DW08-300/100 
 DW06-300/100