Marble/Granite straight flat feet ruler Marble precision measuring tools, instrument platforms, also known as granite, flat feet, using high quality ' Jinan Qing ' made by machining and hand-grinding stone. Black gloss, precise structure, texture, uniform, good stability, high strength, high hardness, can under the heavy load and the temperature accuracy and has no rust, acid and alkali resistance, wear resistance, not magnetic, type and so on.

Marble/Granite straight flat feet ruler Physical sex stable, organization careful, by impact grain off, surface not up Flash, not effect its plane precision, material stable, can guarantee long-term not deformation, line expansion coefficient small, mechanical precision high, rust, antimagnetic, insulation; granite test platform particles delicate uniform, structure stable, work surface in using in the maintenance maintenance simple, material stable, can guarantee long-term not deformation; not by thermostat conditions block, temperature deformation small, precision keep performance good, in at room temperature Xia also can keep measurement precision. Measurements can be moved smoothly, without the creaky feeling, not under the influence of wet, flat good stability.
Marble/Granite straight flat feet ruler Shandong Jinan blue stone stone, marble platform based on high quality underground layers of rock, after millions of years of natural aging, morphology is extremely stable, without fear of deformed because of the temperature difference between the conventional. After rigorous physical tests and selection of granite, Crystal fine, hard texture, compressive strength up to 2290-3750 kg/square centimeter, Ta Mok's hardness hardness 6-7. Extremely wear-resistant, acid-resistant and alkali-resistant, has a high resistance to corrosion, never rusts. Marble, because of non-metallic materials, and no magnetic response, there is no plastic deformation. Its hardness 2-3 times higher than cast iron (equivalent to HRC ﹥ 51),

000 marble platform surface grinding machine tools, manual grinding, usually divided into coarse grinding and fine grinding, fine grinding, fine grinding and polishing are five procedures. to complete the production.
Marble/Granite straight flat feet ruler repair grinding process : In grinding Shi, marble flat and grinding flat middle into Emery or other grinding agent Hou, by Emery extrusion, marble flat surface produced rupture, dang grinding flat and marble flat relative movement Hou, due to abrasive of not rules and it in grinding disc and marble flat surface scroll, marble flat surface rupture of pieces and mill create of pieces was ' push go ', so repeat, gradually makes marble flat surface became smooth and precision of plane. Depending on whether the lapping abrasive using fluid, can be divided into wet grinding and dry grinding. Advantages of marble slab with wear-resistant without deformation, in daily use in the process, we should pay attention to maintenance, minor use, thereby to increase plate life saving costs! Yongjun gauge master trained a group of professional straight measuring tool maintenance, year-round maintenance of various marble platform, cast iron plate, guide, my company sells measuring only charge a simple fee.

Its accuracy is divided into: 000, 00, 0,