1. All raw materials come from TSINGSHAN and other big factories, chemical composition and other properties are guaranteed.
2. 200 tons of TUBE in stock, 2 weeks delivery time.
3. 100% pre-shipment inspection, inspection photos and videos for traceability. 100% ET inspection and bright annealing process to eliminate rust, cracks, dirt and other problems in the bore, to ensure the cleanliness of the bore.
