RPZ Valve
High Precision Steel Ball Manufacturer
We mainly produce stainless steel balls (440C, 304, 316L, 420, 201), carbon steel balls (1015, 1045, 1085), bearing steel balls (GCR15), copper balls, glass balls, titanium balls, flying saucer balls, polishing balls, and other hard alloy balls. All specifications are complete and produced according to GB308-2002, ISO3290-1998, AFMBA1989, and DIN5401-93 standards. We provide precision levels from G10 to G1000, widely applied in aviation, automobile industries, sprayers, bearings, handicrafts, and precision instruments.


Standard: AISI 201, SUS 201, 1.4372
Applications: Widely used in hardware, handicrafts, plastic products, lamps, switches, motorcycle parts, luggage, and die-casting.
Characteristics: Austenitic steel, non-magnetic, cost-effective performance. Can be processed and drilled with Hardness HRC ≤ 28.
Applications: Medical equipment, chemicals, aerospace, perfume bottles, valves, motors, washing machines, and auto parts.
Characteristics: Typically non-magnetic, HRC ≤ 26. Offers excellent rust and corrosion resistance.
Applications: High-demand industries like medical, chemical, and body accessories.
Characteristics: Superior anti-corrosion performance compared to 304. Austenitic steel with HRC ≤ 26. 316L is softer and tougher.
Applications: High precision and rust resistance requirements: motorcycle parts, pulleys, bearings, and petroleum industry.
Characteristics: Martensitic steel (stainless iron), magnetic, good rust resistance with High Hardness HRC 50-55.
A. Steel Drum: 250kg per drum, 4 drums per pallet. Size: 75x75x65cm.
B. Plywood Box: 40 cartons/woven bags per box. Size: 80x65x80cm.
C. Container: 20"FT container capacity of 24 tons.
By Sea: Approx 20-25 days.
By Air: Approx 5-7 days.
By Express: (DHL, UPS, FEDEX, TNT) Approx 4-6 working days.

Our production facilities are certified with ISO 9001 and IATF 16949, ensuring world-class quality control.


Exporting to South America, North America, Europe, Southeast Asia, and Africa.