A.200mm±3mmB.300mm±3mmC.350mm±3mmD.250mm±3mm
A.9kgB.11kgC.15kgD.22kg
A.50KN/m2~150KN/m2B.60KN/m2~160KN/m2C.70KN/m2~170KN/m2D.80KN/m2~180KN/m2