Natural corundum color change blue
sapphire
Unheated/ untreated
Weight- 19.52 crt
Colour- blue and purple
Incoterm- any / discuss with buyers wishes
Origin Sri Lanka
Price - 7500 USD per crt ( price can be negotiable)
Natural yellow sapphire
Unheated/ untreated
Weight- 10 crt
Price - 1400 USD per crt
Loupe clean stone
Certificate can be arranged
Intercom- any discuss with the buyers wish
Origin Sri Lanka
Honing refers to a set of stones (sticks) assembled on the honing head put pressure on the work-Piece along the radial, and through rotating and moving back and forth for precision honing machine.
When honing high hardness and toughness materials, the Diamond /CBN Efficiency of honing stone( stick) is 3-75 times higher than that of ordinary abrasive stone, and the honing efficiency of ordinary materials is also improved about 10 times. since Diamond/CBN honing stone (stick) wear is less, the shape retention is better, therefore, the higher honing accuracy and economic effect can be obtained.
Diamond honing stick is used to process hard and brittle materials, such as honing high carbon steel, cast iron, cemented, carbide, etc.
honing stick mainly used for honing high strength alloy steel, tool steel, stainless steel heat-resistant alloy steel.
