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 (erre van egy jobb kifejezés, de nem jut eszembe, megnézem majd a műszaki szótárban), 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.