... cylinder is tested fast delivery time 1.used for dump truck,loading machine,forestry machine,etc,middle-duty,2.total ... diameter:M20*1.55.pin hole:30mm6.length between trunnion and pin hole:220mm7.seal,see attached pictureinspection: length,leak ... ,pressure inspection Piston Hydraulic Cylinder used for machinery and vehicle for Farming,Construction,forestry,engineering