China bulk colloidal silica Manufacturer, Supplier, Factory

High purity colloidal silica (silica sol) with 20%–40% SiO₂, 5–20nm particle size. Stable, low sodium, acidic/alkaline grades for casting, coatings, CMP, paper. Bulk supply & custom service. Premium colloidal silica manufacturer – nano SiO₂ dispersion, uniform particle size, long shelf life. Ideal for investment casting, refractories, electronics, textiles. Global export, competitive price. Industrial grade colloidal silica liquid, CAS 7631-86-9, high stability & low VOC. Perfect binder/polishing agent for coatings, concrete, catalyst carriers. Wholesale & OEM available.

Our mullite sand is a premium alumina-silica refractory material produced by sintering or electric melting. Featuring high refractoriness, low thermal expansion, superior thermal shock resistance and stable chemical performance, it is widely used for shell making in investment casting and precision casting. Available in multiple grades and particle sizes, our products effectively prevent sand sticking, reduce casting defects and simplify shakeout process, ideal for aerospace, automotive and general industrial casting applications.

Our mullite sand is a premium alumina-silica refractory material produced by sintering or electric melting. Featuring high refractoriness, low thermal expansion, superior thermal shock resistance and stable chemical performance, it is widely used for shell making in investment casting and precision casting. Available in multiple grades and particle sizes, our products effectively prevent sand sticking, reduce casting defects and simplify shakeout process, ideal for aerospace, automotive and general industrial casting applications.

Cast steel balls are wear-resistant grinding media manufactured via high-temperature metal mold casting and professional tempering heat treatment. We supply full series including low chrome, medium chrome and high chrome cast steel balls with diameter ranging from 10mm to 150mm. The product features uniform internal hardness, ultra-low breakage rate, outstanding abrasion resistance and stable roundness without deformation during long-term grinding. High chrome cast steel balls reach HRC 56–62 hardness, medium chrome HRC 47–55 and low chrome HRC 45–52, perfectly matching dry and semi-dry ball mill working conditions. Widely applied in cement plants, mineral processing mines, thermal power stations and chemical grinding workshops. As a direct Chinese manufacturer, we support bulk tonnage supply, customized chrome content & sizes, and provide complete ISO certification and material test reports to global industrial buyers with competitive factory prices.

Jar Hing, a supplier of Automatic Shell Making Six Axis Manipulators from China, has partnered with companies looking to improve automated production processes. With our rugged machines, we provide you with efficient and effective solutions that are suitable for completing heavy-duty tasks, optimizing productivity and simplifying operational processes.

High Purity Zircon Sand 65%–66% ZrO2 – Australian & South African Origin. Premium refractory & foundry grade zircon sand for ceramic glazes, investment casting, furnace lining & industrial coatings. Low expansion, high density, chemically stable. Wholesale & bulk supply available.