The utility model relates to a ginning and roll structure of plastic joint machine.
本实用新型涉及一种塑料贴合机的轧花轧辊的结构。
Black steel case, snap-in plastic lens, brass internal, connection and joint.
黑铁壳，扣入式塑面，铜机芯，铜管子，铜接头。
The invention relates to a concrete joint plastic sealing material.
本发明涉及一种混凝土接缝塑性止水材料。
The invention relates to a concrete joint plastic sealing material.
本发明涉及一种混凝土接缝塑性止水材料。
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