... process 5.Warranty is 1 year IntroductionI.Jaw Crusher DescriptionPT series of jaw crusher can reach the crushing ratio of ... is under 200Mpa, that is, suitable for primary crush. Jaw crushers can be used in mining, metallurgical industry, construction, ... railway building, water conservancy, chemistry, etc.II.Jaw Crusher Working PrinciplePrimary jaw crusher is typically of the square opening design, ...