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    • WSI is a professional manufacturer of OIL SEAL, VALVE STEM SEAL, BONDED SEAL and O-RING in Taiwan. *|RN|*We have 30 years experience of high technical skill to produce the high quality oil seal. *|RN|*We have more than 40000 kinds of tooling in our factory. And all of our customers are satisfied with our high quality and competitive price. *|RN|*Therefore, we earn the good reputation in this field for several years.*|RN|*We sincerely invite you can visit our
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