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Refractories
 Si3N4-SiC blocks used in aluminium electrolytic cells
Special SiC refractories
Corundum series refractories, perlite board
Vermiculite board
Fire mullite insulation bricks
Diatomite insulation bricks,High alumina insulation bricks
JIS series thermal insulation brick,Fireclay insulation brick
Mortars, Castable
Fireclay refractories, High alumina refractories
Alumina silicate refractories
Silica refractories, Magnesite refractories
Acid resistent bricks
Metals
 Bearings' Introduction
Our organization
Bearings' production process and quality control
Bearings technology
Deep groove ball bearings sheet 1
Deep groove ball bearings sheet 2
Tapered roller bearings sheet 1
Tapered roller bearings sheet 2
UCP bearings sheet 1
UCP bearings sheet 2
UCP bearings sheet 3
Self-aligning ball bearings sheet 1
Self-aligning ball bearings sheet 2
Other pillow block ball bearings.pdf

Spherical roller bearings
Thrust ball bearing,Cylindrical roller bearings
Minerals
 DFL Mineral Catalogue Contents
DFL Company Introduction
Vermiculite sheet 1
Vermiculite sheet 2
Muscovite
Sericite and Biotite
Sepiolite
Perlite and Quartz
Mullite and Diatomite
Graphite
Calcium Carbonate,Andalusite,Olivine,Zeolite and Microspere
Garnet and Kaolin
Slate,Granite and Gravestone
Stone carvings
Other products