Product Overview Independently developed by HUASHIDA, the Polyurethane Spraying and PE Winding Pre-Insulated Steel Pipe Production Line is protected by multiple national patents. According to a third...ดูเพิ่มเติม
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High-Pressure Air Type Turnkey Project Polyurethane Spray Foam Pre-Insulated Pipe Production Line for 508-1620mm Steel Pipe Manufacturing