It is made of EPDM,with Stainless steel inside. It can use for container sealing. The quality is good, the key lies in sealing Rubber SealingFeatures:1)for container sealing2)Made by EPDM rubber and Stainless Steel reinforced3)Welcome your drawing,samples for tooling4)Own ISO,TS16949 Certificate for reference.Sincerely welcome your inquiries Seals of Door Accessories -- Rubber Sealing
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