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By certification 
Description:
1. Long stable tap hole length > 1/3
2. Low consumption at plugging
3. Improve campaign efficiency and prolong the service life of BF
4. No moist mixture or yellow fumes when tapping iron, Benzopyrene<5PPM .
5. High heat resistance and erosion resistance
Stemming is one kinds of refractory material used for block the tap hole,it is divided into enhydrous Stemming and anhydrous
stemming .
1.Enhydrous stemming used for low pressure,low degree of intensive smelting for small and medium blast-furnace.
2.Anhydrous stemming used for high pressure,high degree of intensive smelting for medium and big blast-furnace.
1. Long stable tap hole length > 1/3
2. Low consumption at plugging
3. Improve campaign efficiency and prolong the service life of BF
4. No moist mixture or yellow fumes when tapping iron, Benzopyrene<5PPM .
5. High heat resistance and erosion resistance
Stemming is one kinds of refractory material used for block the tap hole,it is divided into enhydrous Stemming and anhydrous
stemming .
1.Enhydrous stemming used for low pressure,low degree of intensive smelting for small and medium blast-furnace.
2.Anhydrous stemming used for high pressure,high degree of intensive smelting for medium and big blast-furnace.
