needle type valve 针形阀 ; 针阀
Needle valve type grease cup 针阀式注油杯
This whole needle valve type 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。
This whole needle valve type hot runner injection under low pressure, the injection molding products in contraction deformation is smaller.
针阀整体式热流道在低压下注射使注塑品在收缩时变形更小。
The piston rod self-locking type gas spring end there is a needle valve open the needle valve is self-locking type gas spring can run as the free type gas spring;
自锁型气弹簧是一种可以在行程任一位置锁定的气弹簧。 在自锁型气弹簧的活塞杆端部有一个针阀打开这个针阀，则自锁型气弹簧可以象自由型气弹簧那样运行；
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