rust prevention for the slot or channel should be taken into account in a mold
Rust prevention for the slot or channel should be taken into account, structure of the slot and channel should be designed for the convenience of cleaning. […]
it is more effective to heat or cool slender slots of large quantity than large-sized slots in a mold
generally, it is more effective to heat or cool slender slots of large quantity than large-sized slots, which expands the range for mold temperature control. […]