重力旋轉環--OO型
*旋轉吊環所采用的高強度高韌性特殊合金鋼鍛造精加工而成均經過調質熱處理
*Forged super ailoy steel-Quenched Tempered
*旋轉吊環的設計安全系數為4:1
*Swivels are designed with a safety factor of 4:1
*旋轉環測試認證時獨立測試載荷應為安全工作載荷的兩倍
*Swivels are individualy tested to 2 times the see working load with certifcation
*旋轉環表面鍍鋅或涂塑，使產品能夠具有抗腐蝕較好性能和壽命
*Swivels are zinc plated for corrosion resistane and longer life
*旋轉環設置有黃油嘴方便于進行維護保養，使產品具有更好的性能
*Swivels are manufactured with grease fittings for supenor performance
