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น้ำยามาตรฐานสอบเทียบ ค่ามาตรฐานความเค็ม
1 × ฿1,444.50 -
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HI38000 CTK Sulfate
1 × ฿4,815.00
Subtotal: ฿6,259.50
Reagent kit for HI 38040 (100 tests)
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