4S-2000 Ltd. provides for its customers a wide range of heat treatment and surface treatment services - typically for ordered parts and machines. However, our company also provides a separate service for chemical browning and natural anodizing, not to mention the sandblasting and vibration deburring. We also carry out in-house the stress release of parts manufactured for our customers. Our customers' parts and machine elements most often require hardening, cementing, zinc-plating, anodizing, galvanizing, nitriding technologies, which we perform with well-established partners. As a result of our long-term good relationship with them, we can count on their help quickly and flexibly, be it custom or small-series production. In 2019, our chemical browning workshop doubled and a service crane was installed. In 2020, our sandblasting and deburring machine has moved to a separate department, which will enable increased efficiency in this activity as well.