... :Seaworthy Export PackageMOQ:1 setsQuality:CE certification , TUV certification.Material:Spring Net: PE,Polyethylene,High Thermodynamic & Quality Stability,innocuity nontoxic,100% safe ... : phosphatization,rust cleaned,polished,powder coated,high-temperature baking finished Spring: Best spring steel, can operate more than 500,000 times Description ...