SRZ's mould heat sink

SRZ's mould heat sink is on the basis of the exothermic capability size , and is divided into : Greatly ( D ) , middle ( Z ) and little ( X ) three Grow form .Heat sink wing slice Guan Jun in the way of φ 21x2m/m does not there is not to come on steel government official up to coil the steel belt to manufacture 15x0.5m/m But the one-tenth presents helix shape , the in it distance possess among 5mm-- greatly " D " and 6mm-- that " Z " and 8mm-- little " X " Three kinds there are 38 kinds of standards in all
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