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自行设计的拖拉机缸体下芯夹具采用气动夹板夹紧和四导柱式结构，保证取芯和下芯均衡平稳；传动箱下芯夹具为手动式，采用手柄杠杆夹板形式，特别设计了可移动式下芯胎具。此两种夹具在使用中均取得较好效果
The self-designed tractor cylinder core clamp adopts the pneumatic clamping plate clamping and the four guide column structure to ensure the core and core balance evenly. The gearbox lower core clamp is manual and adopts the handle lever-splint, specially designed Mobile core car tire. These two kinds of fixtures in use have achieved good results