... customers request to build the mould. Before make the mould, we send mould design to customer approval first, ... other pipe extrusion moulds;2. Mould components: Screen changer, calibrating sleeve, mould temperature controller, thermocouple, spider, and so ... other pipe extrusion moulds;2. Mould components: Screen changer, calibrating sleeve, mould temperature controller, thermocouple, spider, and so ...