patented technology


Patent

Patent

Patent

Patent

Patent

Patent

A spherical check valve core elastic structure

A spherical check valve core elastic structure

A leak-proof structure for the oil outlet of an oil supplement valve.

A leak-proof structure for the oil outlet of an oil supplement valve.

A spherical valve core hydraulic check valve

A spherical valve core hydraulic check valve

A new type of anti-leak oil drain valve

A new type of anti-leak oil drain valve

A new type of oil replenishment valve with good sealing performance.

A new type of oil replenishment valve with good sealing performance.

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