Material: Made of stainless steel, using an integral forging process. The finished product shall undergo magnetic particle inspection to ensure that all material properties meet the technical requirements of the drawings.

Thread Accuracy Assurance: Incomplete threads are removed from the machined threads. The threads are produced using a CNC machining center milling process. The finished products are inspected with go/no-go gauges to ensure thread quality.

Anti-deformation Process: Large valve boxes are prone to deformation during machining. We adopt a cutting process combining stress relief and coolant-assisted cooling, ensuring that the flatness after machining is controlled within 0.05mm per meter.

Rust Prevention Packaging: Immediately after machining, anti-rust oil is applied, and the product is wrapped with stretch film and packed on a wooden pallet, making it suitable for sea freight or long-distance land transportation.

Typical customers: Leading oil equipment companies both domestically and internationally.

CMM Inspection: After the product is machined, a coordinate measuring machine (CMM) inspection is carried out and an inspection report is issued.