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round bottom test tube
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High Borosilicate Glass Test Tube Without Rim,Round Bottom,Heavy DutyUS$ 0.02 - 0.51MOQ: 10 PiecesShanghai Zdan International Co., Ltd.
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5-50ml empty round bottom cheap test tube with white plastic capUS$ 0.05 - 0.16MOQ: 10000 PiecesShanghai Best China Industry Co., Ltd.