WWW国产精品内射老熟女,亚洲无码成人综合网,AV美女主播高潮,无码图片二区

重力旋轉(zhuǎn)環(huán)--OO型
*旋轉(zhuǎn)吊環(huán)所采用的高強(qiáng)度高韌性特殊合金鋼鍛造精加工而成均經(jīng)過調(diào)質(zhì)熱處理
*Forged super ailoy steel-Quenched Tempered
*旋轉(zhuǎn)吊環(huán)的設(shè)計(jì)安全系數(shù)為4:1
*Swivels are designed with a safety factor of 4:1
*旋轉(zhuǎn)環(huán)測試認(rèn)證時(shí)獨(dú)立測試載荷應(yīng)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(zhuǎn)環(huán)表面鍍鋅或涂塑，使產(chǎn)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(zhuǎn)環(huán)設(shè)置有黃油嘴方便于進(jìn)行維護(hù)保養(yǎng)，使產(chǎn)品具有更好的性能
*Swivels are manufactured with grease fittings for supenor perbance