Import Connections For Compressed Air — Buy in Bulk from Supplier in China

Connections for compressed air from Ningbo Yinzhou Come Back International Trade Co., Ltd. are brass and steel fittings designed for pneumatic systems operating at pressures up to 10 bar. The product line includes equal and reducing unions, elbows, tees, and couplings, identified by model codes such as T810.025.025 and T813.040.040, indicating size and configuration. These fittings are manufactured to standard BSP thread profiles and are compatible with ISO 228-1 and DIN 259 standards.

The fittings are primarily constructed from lead-free brass (CW614N or equivalent) for corrosion resistance and durability in humid environments. Steel components, where present, are zinc-plated or coated for rust protection. Thread dimensions follow nominal sizes from 1/2 inch to 2 inch, with male and female variants available. Surface finish is typically bright or matte, depending on plating, with no internal polishing unless specified for high-purity applications.

These connections are sourced by manufacturers of industrial automation equipment, food processing lines, and automotive assembly plants requiring reliable, leak-free pneumatic couplings. Buyers typically order in mixed batches of 500 to 5,000 pieces, grouped by type and size. Packaging is in polyethylene bags inside cardboard boxes, with bulk pallets for larger orders. Delivery terms are commonly FOB Ningbo, with lead times of 20 to 30 days after order confirmation.

Ningbo Yinzhou Come Back International Trade Co., Ltd. is based in Ningbo, Zhejiang Province, China, and operates as an exporter of pneumatic fittings under its own product codes. The listing confirms a focus on compressed air connections with standardized model numbers such as T810, T813, and T814 series. No information is provided on manufacturing capacity, workforce, or quality systems. The supplier is classified as 'imported' and has no recorded response rate.

The company does not claim ISO certification, material traceability, or in-house production capability. Product codes suggest sourcing or rebranding of existing fittings rather than forging or machining. Buyers should assume these are sourced components and verify material composition, thread accuracy, and pressure ratings through independent testing before bulk purchase.