Steel tube quality in Indonesia Steel Tube Works is definitely excellent, precise and reliable for many applications. Having supported with stringent quality control system , standardized tests and worldwide approval certifications, we can assure you that our products will definitely meet your requirements for every project. We also believe that our marketing team can assist you for certain products which need custom / special requirements. For closer description of our quality in products and services, browse through using our navigation bar or you can call us for our assistance.