RPZ Valve
We mainly produce stainless steel balls (440C, 304, 316L, 420, 201), as well as carbon steel balls (1015, 1045, 1085), bearing steel balls (GCR15), copper balls, glass balls, titanium balls, and other hard alloy balls. The product specification is complete, following the GB308-2002 standard and measuring up to international standards including ISO3290-1998, AFMBA1989, and DIN5401-93.
Our products provide an accuracy range of level G10 to level G1000. These high-precision balls are widely applied in hardware goods for the aviation industry, automobile trade, sprayers, bearings, handicrafts, and precision instruments.


Standard Comparison: SISI201, SUS201, 1.4372
Applications: Hardware industries, handicrafts, plastic products, lamps, switches, motorcycle parts, luggage, and die-casting parts.
Characteristics: Austenitic steel, non-magnetic, low price with excellent performance. Hardness HRC≤28. (Not recommended for high anti-corrosion environments like seawater).
Applications: Medical equipment, chemical, aviation, perfume bottles, sprayers, valves, motors, auto parts, and precision instruments.
Characteristics: Typical austenitic steel, generally non-magnetic (may become slightly magnetic after processing). Hardness HRC≤26. Excellent rust and corrosion resistance.
Applications: High-demand sectors like medical equipment, aerospace, chemical valves, body accessories, and mobile phone components.
Characteristics: Austenitic steel, HRC≤26. Provides superior anti-corrosion performance compared to 304. 316L is softer and tougher, ideal for body jewelry.
Applications: High precision and rust resistance requirements: motorcycle parts, pulleys, stainless steel bearings, and petroleum industries.
Characteristics: Martensitic steel ("stainless iron"), magnetic, excellent rust resistance. High hardness of HRC 50-55.
A. Steel Drum Packing: 250kg per drum; 4 drums per pallet (75x75x65cm).
B. Plywood Box Packing: 40 cartons per plywood box (80x65x80cm).
C. Logistics: Recommended 20" FT container (24 tons capacity). Shipping via Sea (20-25 days), Air (5-7 days), or Express (4-6 working days).


Our production facilities are certified under ISO 9001 and IATF 16949, ensuring the highest manufacturing standards.

