Diamonds are composed of carbon elements and are the simplest gemstones of all gemstones in nature. They are crystals crystallized under high temperature and high pressure underground.
The occurrence of diamonds can be divided into two categories: one is the primary diamond ore, which is a tubular vein formed by the movement of the earth’s crust that brings diamond-containing magma to the surface and cools down; the other is diamond placer, which is formed by Mineral deposits containing diamonds are deposited by the weathering of the surface, which washes diamonds and other minerals away from the original veins.
In the history of the discovery of diamond deposits, the early discovered diamond deposits were mainly placer deposits. With the continuous development and progress of science and technology, more and more primary diamond deposits have been discovered. The primary diamond ore can be divided into two types: kimberlite type and potash lamprophyre type. The latter was first discovered in Western Australia in 1978.
It is also a very complicated matter to sort out diamonds from the large diamond-containing ore mined. According to statistics, to produce 1 cut and polished 1ct diamond, about 250t of ore must be excavated from the original diamond ore, which shows the preciousness of diamonds.
Ayni paytda, there are about 30 countries producing diamonds in the world, mainly including Australia, Congo (DRC), Botswana, Russia, South Africa, Namibia, Ghana, Angola, Sierra Leone, Lesoto, Brazil, Tanzania, Central African Republic, Liberia, Congo (Cloth), Guinea, Venezuela, Guyana, Indonesia, Xitoy, va hokazo.
Ammo, the earliest country producing gem-quality diamonds in history is India. Many diamonds with a long history and legendary color are also produced in India, where diamond resources are all derived from placers, and diamond resources in these areas have been basically exhausted. .
18 In the 1930s, Brazil became the world’s major diamond producer after India. The discovery of diamonds in Brazil is closely related to the gold rush. Early gold prospectors often found some shiny gravel at the bottom of the gold pan. They left some of the big ones as a bargaining chip when playing cards, and threw the small ones away. Aslida, these shiny gravels may be Diamonds, just because people at that time did not realize this.
Just as the diamond production in Brazil was gradually decreasing and the resources tended to be exhausted, a huge primary ore of all Bethleite diamonds was discovered on the Vaal River in South Africa. South Africa is the main producer of big diamonds in the world. According to statistics, there are currently more than 60 diamonds larger than 400ct found in the world, and more than half of them are found in South Africa. South Africa now produces 8.2-10 million carats of diamonds annually, ranking fifth in the world.
OEM / ODM Zargarlik buyumlari ishlab chiqaruvchisi o'z zargarlik buyumlarini ojizlashtiradi
Keling, boshlaymiz : Mo@kingjy.com
Guangzhou Jeyning Custance World Wewlass marjonlari markali ziraklarni suzadi 925 zargarlik buyumlari,Sterling kumush oltin 18k bilan qoplangan,14K,24K sariq oltin,oq oltin va Rose Gold.it Custom zargarlik buyumlari turli xil dizaynga ega,logo brend yoki mijozning talabiga binoan lazerni o'yma.
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odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
Jeyking Custome kumush sirg'irish zargarlik buyumlari ishlab chiqaruvchisi Ishlab chiqarish jarayoni
Sifatli zargarlik buyumlari uchun sifat kafolati
1. Asl belgilash
U bizga dizayn g'oyasi yoki namunasini o'zgartirganingizda boshlanadi ,Sizning so'rovingiz sifatida original dizaynni boshlaymiz. Custom Marjon ishlab chiqaruvchisi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
2.3D mog'or yaratish
Bu oddiy eskiz yoki to'liq prototipi bo'lsa ham, Biz tajribali va etuk dizayn jamoamiz, siz uni hayotga to'liq boy zargarlik buyumlari sifatida olib borishda ishlashda yordam beradi.Odat 925 Kumush braceet.
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
3.Mog'or yaratish ( Metall master) Biz CNC ishlov berish mashinasini o'yma zargarlik buyumlari modelidan foydalanamiz, zargarlik buyumlari 100% Yuqori sifatli starling kumush zargarlik buyumlari bilan bir xil, zargarlik buyumlari silliq va yo'qolgan tosh .Maxsus sirg'alar Sterling Kumush ishlab chiqaruvchi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
6. Qo'l gem toshini sozlash Biz Yaponiyadan olib kelingan mikrokriddan foydalanamiz 5a cz toshlari ,bo'lishi mumkin 99% Yo'qolgan tosh mumni sozlash texnologiyasi yo'q . Odatdagi erkaklar kumush zargarlik buyumlari
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Zargarlik buyumlari uchun zargarlik buyumlarini ishlab chiqaruvchi kumush sirlar ishlab chiqaruvchisi sifatini ta'minladi :
Yetkazib berishdan oldin yahudiylarning dizayzlari va tovarlar suratga olish kerak .Men muammoni tekshiring .
Agar siz tovarlarni olganingizdan so'ng odatdagi yahudiy dizayni yoki massaviy tartibda biron bir muammo bor ,Biz bilan bog'laning (Mo@kingjy.com) ,agar sifat muammolari bo'lsa, qaytarib olish mumkin ,Biz bilan biznes xavfsizdir .
OEM / ODM Zargarlik buyumlari ishlab chiqaruvchisi o'z zargarlik buyumlarini ojizlashtiradi
Keling, boshlaymiz : Mo@kingjy.com
Guangzhou Jeyning Custance World Wewlass marjonlari markali ziraklarni suzadi 925 zargarlik buyumlari,Sterling kumush oltin 18k bilan qoplangan,14K,24K sariq oltin,oq oltin va Rose Gold.it Custom zargarlik buyumlari turli xil dizaynga ega,logo brend yoki mijozning talabiga binoan lazerni o'yma.
Bizning oylik ishlab chiqarish quvvatimizga bog'liq 50,000 Belgilangan bilaguzlamalar sig'dargohlari xiralashgan zargarlik buyumlari.,Zargarlik zanjiri do'koni,Outlet do'konlari,zargarlik buyumlari ulgurji sotuvchi,Savdogarlar va zargarlik buyumlari brendi kompaniyasi,professional ravishda taqqoslangan zargarlik buyumlari va yuqori sifatli mahsulotni ishlab chiqarishni yaratadi 925 Sterling kumush zargarlik buyumlari xizmati.
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
Jeyking Custome kumush sirg'irish zargarlik buyumlari ishlab chiqaruvchisi Ishlab chiqarish jarayoni
Sifatli zargarlik buyumlari uchun sifat kafolati
1. Asl belgilash
U bizga dizayn g'oyasi yoki namunasini o'zgartirganingizda boshlanadi ,Sizning so'rovingiz sifatida original dizaynni boshlaymiz. Custom Marjon ishlab chiqaruvchisi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
2.3D mog'or yaratish
Bu oddiy eskiz yoki to'liq prototipi bo'lsa ham, Biz tajribali va etuk dizayn jamoamiz, siz uni hayotga to'liq boy zargarlik buyumlari sifatida olib borishda ishlashda yordam beradi.Odat 925 Kumush braceet.
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
3.Mog'or yaratish ( Metall master) Biz CNC ishlov berish mashinasini o'yma zargarlik buyumlari modelidan foydalanamiz, zargarlik buyumlari 100% Yuqori sifatli starling kumush zargarlik buyumlari bilan bir xil, zargarlik buyumlari silliq va yo'qolgan tosh .Maxsus sirg'alar Sterling Kumush ishlab chiqaruvchi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
6. Qo'l gem toshini sozlash Biz Yaponiyadan olib kelingan mikrokriddan foydalanamiz 5a cz toshlari ,bo'lishi mumkin 99% Yo'qolgan tosh mumni sozlash texnologiyasi yo'q . Odatdagi erkaklar kumush zargarlik buyumlari
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
7. Po'stloq Biz hamma uchun 2 marta plitka qilamiz 925 Sterling kumush zargarlik buyumlari ,birinchi navbatda qalin kumush kumush po'st ,Ikkita pas, sirt tekisligi, keyin haqiqiy oltin po'sti bilan davom eting ,qalinligi yuqoriga 3 Mikronlar 1 yilning vaqtini davom ettirishini ta'minlaydi ,Biz uni ikki marta deb ataymiz .
odatdagi kumush sirg'irish zargarlik buyumlarini ishlab chiqaruvchisi
8. Mukammal QC jarayoni Sifatni tekshirish butun ishlab chiqarish liniyasidagi eng muhim jarayondir .Bizda har bir jarayon tomonidan sifatni tekshirish uchun 10-muhandis jamoasi mavjud . Yo'q