1. Specialized products to improve urban aesthetics

1) There is no phenomenon of metal corrosion and bending.

2) There is no fracture phenomena of concrete products.

3) Unique color and texture of stone coordinates with a surrounding environment.

(It is a only product certified Korean eco-label in the country.)

4) Because it is manufactured from nature stone dust, there is no paint peeling phenomena.

5) It is can be produced in a variety of designs

2. Anti theft and electric shock + Decreased complaints + Secondary accident prevention = Budget reduction

1) Theft cases of metal product in Korea

∘ 112 manhole cover theft in Bundang-gu, Seongnam-si, Gyeonggi-do (2012. 6. 5 The Joongboo Daily News)

∘ More than 500 grating theft in Sokcho-si, Gangwon-do (2012. 9. 26 The Gangwon-Domin Daily News)

∘ 38 grating theft in Chungju-si, Chungcheongbuk-do (2012. 10. 24 The Maeil Business News)

2) Electric shock accident prevention

∘ The high school girl was electrocuted when a manhole cover treading in the rain (2005. 6. 27 The Munhwa Daily News)

∘ Because electric shock, 800 people died in the most recent three years (2012. 7. 12 The MBC 9 o’clock News)

3. Excellent safety and durability

1) Excellent slip resistance : 35 BPN (raised blocks for the blind : 20 BPN in the Korean Standards

2) Extended product life

∘There is no phenomenon of metal corrosion and paint peeling.

∘ Our products are strong 3.65 times more than concrete compressive strength.

3) Comparison of gratings quality in the Korea

∘ One of rear wheel load from dump truck of total weight 25ton : 5.6 ton

∘ The standard quality of steel grating in the Korea : More than Static load test 60 kN (About 6 ton)

∘ Static load test of Stone grating : No change at 118 kN (About 11 ton)

1. Specialized products to improve urban aesthetics

1) No phenomenon of metal corrosion, bending and paint peeling

2) Unique color and texture of stone coordinates with a surrounding environment

(It's a only product certified Korean eco-label)

3) Can be produced in a variety of designs

2. Anti theft, electric shock and secondary accident + Decreased complaints = Budget reduction

1) More than 500 grating theft in Sokcho-si(2012.9.26)

2) The high school girl was electrocuted when a manhole cover treading in the rain(2005.6.27)

3) Because electric shock, 800 people died in the most recent three years(2012.7.12 The MBC News)

3. Excellent safety and durability

1) Slip resistance : 35BPN(Raised blocks for the blind : 20BPN in the Korean Standards)

2) Safe quality

∘ It is strong 3.5 times more than concrete compressive strength

∘ One of rear wheel load from dump truck(25ton) : 5.6ton

∘ Static load test of Stone grating : No change at 118kN (About 11ton)