http://VACCUMPUMPMANUFACTURER.COM
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Diffusion Pump Oil * The narrow distillation of molecular weight and great exhaust speed makes ultimate vapor pressure quickly. * Even though it is exposed to the air while working condition, excellent thermal and oxidation stability has no influence of ultimate vapor pressure. * The oil flow backward in small. * The small evaporation rate and wide range of working electrical power has got stable high vacuum pressure under different electrical power.
http://VACCUMPUMPMANUFACTURER.COM/-diffusion-pump-oil-the-na/b591
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