LongSeal in brief

20 years experience in sealing industry
About 20 tons/month PTFE Resin material consumption and a capacity of 10 tons/month gland packing.
Owned ePTFE&Gland Packing production base and strong supply capacity of gasket&packing etc sealing materials
30000 sq.m of production and office space
Export to 90+ countries worldwide

350+ worldwide clients & 400+ domestic clients

Over 50 well-trained workers and 15 professional sales

Strict Quality Control System

Superior Sealing Quality& Service

Welcome OEM&ODM orders

Technical support and training

China Reliable Industrial Seals&Gaskets Products Supplier

LongSeal is a leading industrial sealing materials manufacturer in Cixi City, China, which specializes in the manufacturing, designing, and distributing of Seals&Packings products.

Our Seals&Gaskets products business has been developing for more than 20 years, from an individual sales department to a professional corporation that combines Metallic & Semi-Metallic gaskets, ePTFE products, Braided Packing, Gasket Sheets, Thermal&Insulation Materials, Packing&Gasket Raw materials, Rubber Parts and so on. We owned two production bases to manufacture ePTFE products and Gland Packings respectively by the year 2008.

Nowadays, LongSeal industrial Seals&Gaskets products have been exported to more than 90 countries & regions worldwide, we won valued customers reasoned of excellent quality & service and competitive prices. With an area of 30000 square meters, you can find us in many brand companies, such as Sinopec, 3M, TOT, CNOOC, etc.

LongSeal will support you in designing the entire sealing solution and one-stop sourcing service according to your requirements.

LongSeal Company

Located in Cixi, LongSeal specialized in manufacturing&developing Seals&Packing products for over 20 years. with 2 production bases, we support you to design the entire sealing solution and provide a one-stop sourcing service according to your requirements.

Longseal Products

Longseal manufactures ePTFE products and a variety of braided packing, like ePTFE sheets,ePTFE gaskets, ePTFE joint sealant, pure PTFE packing, ramie PTFE packing, aramid PTFE packing, etc. in the meantime, we are providing industrial gasket, gasket sheet, rubber parts,thermal&insulation materials, and so on for sealing solutions

Quality Assurance

Advanced production & inspection equipment and a strict quality control system guarantee reliable quality, Lone-term sealing industry production and sales experience provide mature sealing solutions. and we constantly improving production technology for all seals&gasketsproducts, etc.