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STDRB-1 Electric Hot Plate
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STFSJ-5 Large Pulverizing Machine
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STPZL-1 Free Swelling Rate Meter
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STXD-2 Electric Relative Density Meter(Improved)
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STXD-1 Relative Density Meter
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STZK-82 Vacuum Drying Oven
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STHX-B Precise Blowing Drying Oven
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STHX-A Digital Display Constant Temperature Convection Oven