Informes de Materias Primas

We received an official third-party testing report issued by SGS-CSTC Standards Technical Services Co.,...

As part of our material sourcing and documentation review, Haosen Jewelry works with Qingdao Shenghuake...

Haosen Jewelry reviews an Intertek-issued GRS 4.0 Scope Certificate covering post-consumer recycled PE...

Material safety is a key consideration in jewelry manufacturing. Choosing the right metal material ensures...

At Haosen Jewelry, material quality control starts before jewelry production begins. For brass and copper-based...

Discover Haosen Jewelry’s latest SGS test report for our 316L stainless steel bars. With all restricted...

This article introduces Haosen Jewelry, a leading B2B sustainable leather jewelry manufacturer that utilizes...

This blog post presents the SGS test report for Haosen Jewelry’s 316L stainless steel bar material, focusing...