Processing of Precious Metals in Various Forms

We process precious metal into various shapes so that it can be used as materials for necklaces, rings, earrings, bracelets, and other forms of jewelry.
We provide normal wire rods, plates, pipes, rings, and even clad metals, certainly with color tone and grade but also with precision and quality through excellent secondary workability.

Various Wire Rods and Tape Materials for Necklace Chains

Pressing for Forged Rings

Pipes for Jewelry Parts and Wind Instruments

Pressing for Watch Parts and Wind Instrument Parts

■Various General Alloys for Jewelry
Classification Item Nominal Composition
(wt%)
Examples of Main Uses
Pt Pd other
Platinum Alloys 950Pt(Cu5) 95.0 Cu Mainly for rings
900Pt 90.0 10.0 For casting products
900Pt(Cu5) 90.0 5.0 Cu For general use
900Pt(Ru2) 90.0 8.0 Ru For rings
850Pt(Cu5) 85.0 10.0 Cu For necklace chains
850Pt(Cu7.5) 85.0 7.5 Cu For necklace chains
585Pt 58.5 34.0 Cu For rings
Classification Item Nominal Composition
(wt%)
Examples of Main Uses
Au Ag other
Gold Alloys K18(6:4) 75.0 15.0 Cu Yellowish material for general use
K18(5:5) 75.0 12.5 Cu Yellowish material for general use
K18(2:8) 75.0 5.0 Cu Redish material for general use
K18PGNo.1 75.0 4.5 Pd,Cu Pinkish material for general use
K18PdWGNo.7 75.0 4.5 Pd,Cu Grayish WG for general use
K18PdWGNo.9 75.0 11.1 Pd,Cu Light beige WG for necklace chains
K18PdWGNo.11 75.0 10.0 Pd,Cu Light beige WG for necklace chains
K14NiWG 58.5 Ni,Cu,Zn Mainly for eyeglass frames
K10(9:1) 41.7 52.5 Cu Greenish material for general use
K10(2:8)Zn8 41.7 10.1 Zn,Cu Yellowish material for general use
K10(1:9) 41.7 5.8 Cu Pinkish material for general use
K10WG 41.7 40.3~41.3 Pd,Cu Grayish WG for general use
Classification Item Nominal Composition
(wt%)
Examples of Main Uses
Ag other
Silver Alloys 950Ag 95.0 Cu For general use
950Ag-Zn 95.0 Cu,Zn For casting products
925Ag 92.5 Cu For general use
925Ag-Zn 92.5 Cu,Zn For casting products
900Ag 90.0 Cu For general use