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Note: 1.When using Crucible Tongs to pick up the hot crucibles cup, the tip of the clamp must be preheated to prevent the crucibles cup from rupturing due to local cooling. The tip of the clamp should be placed on the table top or asbestos web. 2.After the experiment is completed, the Crucible Tongs should be wiped clean, placed in the experimental equipment cabinet, and placed dry. 3.Use the curved part for clamping, and use the pointed end for other purposes. 4.Crucible Tongs does not necessarily work with the crucibles cup. 5.Crucible Tongs should be lightly clamped when taking the crucibles cup and crucibles cup cover, avoiding the force, making the crispy porcelain crucibles cup etc.