What are the advantages of Korean grids compared to other grids?

For the filter grid, we know better, but what advantages does the Korean filter grid have over other grids? Let me talk about it below.
(1) Variable size
From standard 5×7” to 14×51”, special sizes can also be customized according to customer requirements. The size of the grid is one inch larger than the corresponding film size.
(2) Variable gate ratio

    From 3:1 to 15:1, the gate ratio refers to the ratio of the height of the lead grid strip to the width of the gap.
(3) focal length range
    From standard short focus (26″-32″) focal length (34″-44″) far focus (40″-72″, 48″-72″ 60″-72″) until infinity (parallel line).
(4) High gate density
    From 60 or 70 lines/inch to high density (85 lines/inch), ultra high density (103 lines/inch), invisible line (105 lines/inch), super invisible line (170 or 200 lines/inch) .

Author：Alina