material: Joint (20Cr), shaft (45#, 60# or stainless steel)Packing: Seaworthy packing or according to customers' requirementsQualityguarantee: Assured strictly in compliance with ISO9001Features:1) Used for transmission systems 2) Develop according to customers' drawings or samples. OEM is available 3) High intensity and rigidity 4) Excellent performance, long using life