By the Application Engineering Team at ProTech Transfer Co., Ltd. Most jewel ...
Knowledge Center
Protech Transfer Joins the 74th Bangkok Gems & Jewelry Fair 2026
Protech Transfer is pleased to announce our participation in the 74th Bangkok G ...
Why Electro Finishing Is Changing How Jewellery Gets Its Shine
Every jewelry workshop knows the bottleneck. A batch of casted pieces sits wait ...
Impurities and Inclusions in Jewelry Casting – The Hidden Threat
Even trace levels of contamination can compromise the structural integrity and ...
Precious Metal Recovery from Electro-Polishing
Discover how jewelry manufacturers can recover gold, silver and rhodium fro ...
Laser Welding Pulse Shaping
Laser Welding Pulse Shaping Square A universal wave form where the se ...
Shrinkage Porosity in Jewelry Casting
What is Shrinkage Porosity? Shrinkage porosity refers to irregular cavities ...
Hard and Soft Spots in Jewelry
Understanding Jewelry Spots Spots in jewelry are foreign particles that beco ...
Form Filling: Theory and Alloy Properties in Jewelry Casting
Understanding Metal Flow in Jewelry Casting The properties of liquid metal s ...
Gas Porosity in Jewelry Castingpost
What is Gas Porosity? Gas porosity manifests as small, round holes under the ...











