大型制品 meaning in English

bulky item
massive article

In inject makings because of no longer the runner material that mix into processes repeatedly into the course , reason product quality can get rising significantly , because gating system is plastic , maintain melt at the same time , loss of the pressure when flow is small , easy implementation is many runner , consequently much model the low pressure of antrum mould and large goods injects
注射料中因不再掺入经过反复加工的浇口料，故产品质量可以得到显著地提高，同时由于浇注系统塑料保持熔融，流动时压力损失小，因而轻易实现多浇口、多型腔模具及大型制品的低压注射。