【Task】 Provided is a manifold for injecting a liquid substance, which has a high effectiveness rate of the liquid substance when injecting a liquid substance such as a pickle liquid into a meat mass or the like, causes less damage to the surface of the meat mass or the like, and can inject the liquid substance. SOLUTION: A plurality of substantially horizontal pipes arranged side by side in a direction orthogonal to the transport direction of the meat mass; a means for sending a liquid substance to the substantially horizontal pipe; and a plurality of pipes communicating with the central portion and both end portions of the substantially horizontal pipe. In a liquid substance injection manifold provided with a branch pipe having an injection nozzle at the tip and having a branch pipe communicating with the assertion in the central portion, from the injection nozzles arranged on both end sides. The injection nozzles arranged at both ends are in the range of 8 ° to 30 ° with respect to the direction of the liquid flow through the branch pipe arranged in the central portion so that the injected water flow is directed toward the center. Liquid material is injected using a liquid material injection manifold, which is characterized by being inclined inward. [Selection diagram] Fig. 1
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