Suzhou Ultimate Sealing Technology Co.,Ltd. welcomes a third party to thoroughly inspect our O ring. The third-party testing is a quality control process where an independent organization reviews our product to see if it meets certain standards. This process is not involved in any other activities, such as design, procurement, fabrication, or installation but the inspection and testing only. We also carry out our own checks in house performed by our experienced and skilled independent QC team. Both processes can lead to a better-quality product.

Ultimate Seal is an expert maker of o ring product. As one of Ultimate's multiple product series, FKM gasket series enjoy a relatively high recognition in the market. Ultimate FKM o ring goes through a complete design process. The process mainly includes a purpose statement, consideration of mechanisms&transmitted forces, material selection, etc. The product is harmless and toxic-free. It has passed elements testings which prove that it does not contain lead, heavy metals, azo, or other harmful substances.

Since its inception, our team Seal has been adhering to the 'sustainable innovation, the pursuit of excellence' spirit of enterprise. Welcome to visit our factory!