The spring chill in Ankara had not yet faded, and Murat, an engineer from a new energy enterprise in Turkey, was frowning at a government project tender. This core order related to the local photovoltaic micro-grid construction was stuck at a seemingly minor but crucial link—the production of 90° bent jumpers. This special terminal, which requires extremely high precision and forming stability, had no local supplier in Turkey capable of mass-producing it stably, and the project approval was once at a standstill.

In early 2026, this plea for help, carrying the anxiety from the Mediterranean, traveled 8,000 kilometers and reached Teliang's production workshop. Murat repeatedly emphasized in the email, "The jumper needs to be bent at a precise 90° right-angle. There should be no cracks or deformation at the bent part, and the electrical conductivity must remain stable. This is a hard requirement of the government project. We've tried three local factories, but either the bending angle deviation exceeds 3° or the metal develops fatigue cracks, and they simply can't pass the inspection."

When Lao Li, the production supervisor of Teliang, received this requirement, he knew clearly that this was not a problem that could be solved by conventional processes. The 90° bent jumper, despite its seemingly simple structure, has extreme requirements for metal ductility, bending angle control, and stress relief. Once the bending force is uneven, either the angle will deviate or the metal will crack, directly affecting the circuit conduction and project safety. Conventional stamping dies for terminal blocks could not meet the small-batch trial-production demand, and the customer urgently needed samples for project approval. There was no room for delay.

The "Golden Finger" Solution: From Artisan Hand-Forming to Industrial Precision

"Let Lao Zhou take it. He has 7 years of experience in manual forming. No one is more reliable than him for this kind of delicate work." Lao Li made the decision. Lao Zhou was well-known as the "golden finger" in Teliang. After getting the blueprint, he didn't start working immediately. Instead, he repeatedly deduced based on the sample drawing: select a high-ductility copper-alloy base material, first perform annealing treatment to eliminate internal stress, then fix it with a customized fixture, fine-tune the bending angle by every 1°, and finally polish the edges to ensure there are no burrs or cracks.

Under the workshop lights, Lao Zhou steadily clamped the annealed copper sheet in the fixture. "90° is not a fixed number. We need to leave a 0.5° spring-back allowance, otherwise the angle will shift after cooling." After a full 8 hours, two samples took shape: the angle was precisely within the range of 89.5° - 90.5°, the bent part was smooth without cracks, and the conductivity test was perfect.

From 2 Samples to 10,000-Piece Order: Securing Government Approval

After careful inspection, Lao Li wrapped the samples in shock-proof foam and sent them to Turkey urgently. Half a month later, Murat's reply arrived: "The samples have perfectly passed the government inspection. The angle deviation is only 0.3°, and the project approval has been officially passed! We will place an order for 10,000 pieces immediately!"

This success proves that Teliang's custom terminal blocks and jumpers can replicate the precision of manual forming through automated production. Teliang's technical team immediately launched the mass-production plan, designing a special stamping die to ensure that every product reaches the sample-level quality.

Conclusion: Connecting Trust Worldwide

Today, the first batch of 10,000 90° bent jumpers is ready to be shipped via the China-Europe Railway Express to become core components of the Ankara photovoltaic micro-grid. This cooperation is a vivid footnote to Teliang's spirit: "customer problems are innovation propositions." Teliang will continue to use craftsmanship and precision to write more cross-border cooperation stories in the global new-energy connection field.