
DN50 Inner-and-Outer-Ring Spiral-Wound Gasket
Ring-supported metal and graphite gasket listed by Donglai.
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Dacheng Donglai Sealing Materials Sales

Reinforced graphite-packing enquiry from Donglai’s catalog.
Donglai’s title names nickel-wire graphite packing, while also combining several other packing descriptions. The material field identifies graphite. An enquiry should therefore define the required wire reinforcement and fiber composition explicitly, rather than assume every term in the title describes one construction. Request the selected grade and duty-specific limits for the equipment gland.
Dacheng Donglai Sealing Materials Sales · Langfang, Hebei
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Source reviewed: 2026-11-08. This directory summary organises the supplier’s published product information.
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Ring-supported metal and graphite gasket listed by Donglai.
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Square packing sold under a GFO description in Donglai’s listing.
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Cut or prepared graphite rings for gland sealing enquiries.
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Aramid-fiber packing with ring-form enquiries described in the listing.
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PTFE fiber packing with a 12×12 listing reference.
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Continuous flexible graphite packing for pump and valve enquiries.
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Copper bonding lead listed for flanges, cable trays and cabinets.
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