Swab cup seals for downhole tools Singapore feature durable polyurethane or HNBR lips for wireline and slickline swabbing operations. Abrasion-resistant designs handle sand and debris while maintaining positive seal. Singapore well intervention teams use these cups for efficient fluid lifting and pressure testing in production tubing. https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/