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$Henan Dengfeng Guangda Refractory Co., Ltd$ $Henan Dengfeng Guangda Refractory Co., Ltd$

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Heavy Refractory

Insulating Refractory

Special shaped refractory

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Low-Creep Series for Hot Blast Stoves

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Heavy Refractory

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Project		DRL-155	DRL-150	DRL-145	DRL-140	DRL-135	DRL-130	DRL-127
Al ₂ O ₃,≥		75	75	65	65	65	60	50
Fe ₂ O ₃ %,≤		1.3	1.3	1.3	1.5	1.5	1.5	1.8
Apparent porosity A.P%, ≤		20	21	21	22	22	22	23
Bulk Density B.D g/cm ³ , ≥		2.65	2.65	2.5	2.4	2.35	2.3	2.3
Compressive strength C.C.S MPa, ≥		60	60	60	55	55	55	50
High-temperature creep rate (0.2 MPa × 50 h) %		1500℃ 0.8	1500℃ 0.8	1450°C 0.8	1400°C 0.8	1350℃ 0.8	1300℃ 0.8	1280℃ 0.8
Reburning line variation rate P.L.C%	1550℃ for 2 hours	+0.1 -0.2	+0.1 -0.2	+0.1 -0.2	+0.1 -0.2	-	-	-
Reburning line variation rate P.L.C%	1450℃ for 2 hours	-	-	-	-	+0.1 -0.4	+0.1 -0.4	+0.1 -0.4

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$GuanDa Refractory Material Co., Ltd. of Dengfeng City, Henan Province$

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dfgdnhf@sina.com

+86-371-62986719

East Section of Yingbin Avenue, Ludian Town, Dengfeng City

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