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Nitrogen oxide sensor

                                  The core will be accepted for reconditioning if it meets the following criteria:1. the core is complete and not disassembled.2. the body is not visibly cracked or damaged.3. the index of the core is consistent with the index of the purchased goods.4. cores damaged for reasons other than operational reasons, such as careless handling, fire, improper disassembly or improper protection during storage, will not be accepted.