lifting clamps certificate:GS,CE,ISO9001,EN1492,EN12195 working load is up to 10T lifting clampsApplication: Horizontal lifting of steel plate . Material: Low carbon steel alloy. Loading range: 0 to 10 ton. Two pieces of clamps are used for the testing, but 2 pieces or 4 pieces are recommended for lifting operation, balance beam is needed for big sized steel plate. Testing load is 2 times of ...