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tungsten carbide seal ring with the original raw and reworked material

1.Sealing ring is a ring with a gap seal, the sealing effect. 2.High hardness. 3.Good strength and toughness 4.Heat resistanc

Alibaba manufacturer tungsten carbide mining tips China100%raw material

Alibaba manufacturer tungsten carbide mining tips China : 1.factory produce direct 2.100%raw material 3.high speed