Mission:
+ exhaust system is to provide multiple paths to the air trapped in the cavity to escape quickly and easily. Exhaust systems need to be designed so that air easily escapes, but not for passing the plastic melt.
+ When there is no exhaust system or exhaust system is not designed well, it will cause some defects severe disabilities on the product as being weld, burn marks, details are not filled, ...
technical requirements:
- Must be properly designed techniques would otherwise cause a number of serious defects in the product as being weld, burn marks, details are not filled, ...
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