Deli Group Hanfeng Metal Hose Co

1 Product Overview This product is mainly used for flexible connections between negative pressure drainage pipelines and devices in coal mines. It has good bending performance and solves the problem of connections between negative pressure drainage hard pipes and devices in coal mines. It has air tightness problem and has the advantages of easy installation and use, flame retardant and anti-static. 2. Specifications, model and meaning. Type? Indicates nominal pressure is type. Indicates nominal pressure is type. Indicates nominal pressure is type. Three standards and requirements. Scope of application. Use strictly in accordance with relevant regulations on coal mine safety