This whole needlevalvetype hot runner injection under low pressure, the injection molding products in contraction deformation is smaller.
针阀整体式热流道材料浪费少，注塑产品的质量得到改善并更加稳定。
2
The piston rod self-locking type gas spring end there is a needlevalve open the needlevalve is self-locking type gas spring can run as the free type gas spring;