The rotary kiln furnace is used to melt non-ferrous materials in bulk quantity using refractory materials for combustion.
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SV-77 is triple molecular distilled synthetic oil which gives a high vacuum of 6x10(-4) Torr. This is very hardy rotary vacuum pump oil which gives a
SV-68 vacuum oil is double molecular distilled and gives a vacuum of 10(-3) Torr. It is an alternative of R4, R7 and Ultragrade 19.
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