... -52 LIFTING SOCKET 3-4 TIMES LIFTING CAPACITY TESTING BEFORE SHIPMENT PROVIDE TEST CERTIFICATE 1) Product: Lifting socket,lifting insert,bend and waved socket, transport socket,flat socket ,socket with ... ) Material: stainless 304/316, ST52.36) Surface: plain, galvanized) Product: Lifting socket,lifting insert,bend and waved socket, transport socket,flat socket fixing / lifting socket