Fully refined paraffin refers to a product obtained by using oil-containing wax as the raw material, degreased by sweating or solvent, and then refined by clay or hydrogenation.
Fully refined paraffin is also called refined white wax. The appearance of fully refined paraffin is white solid, with block and granular products. Its product has a higher melting point, less oil content, no sticking at room temperature, no sweating, no greasy feeling, waterproof, moisture-proof It has good electrical insulation. Because of its high degree of sophistication and low content of fused aromatic hydrocarbons. It has good chemical stability and light, good thermal stability, strong toughness, good plasticity, white color, no mechanical impurities and moisture, and no smell. Fully refined paraffin can be Soluble in: benzene, ether, chloroform, carbon disulfide, carbon tetrachloride, turpentine, petroleum, fixed oils.
Mainly used in high-frequency porcelain, carbon paper, stylus wax paper, precision casting, decorative sound-absorbing board and other products. Also used in packaging, electronics, textile candle crayons, match making and other industries. In addition, manufacturing high-grade candles and various industrial, civilian candle products Raw materials and additives, modifiers, etc.
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Ductile Iron Manhole Covers / Manhole Cover
Cast Iron Manhole Cover
Manhole covers, SMC composite manhole cover, drainage, trench drain, drain pipe, drains, manhole covers, manhole, gulley, manhole covers for sale
We can produce all types of manhole covers based on customer drawings or samples. OEM and ODM are welcome.
Product Details:
1. Material & Standard: Grey iron, ductile iron, malleable iron, carbon steel, alloy steel (high manganese steel, high chromium steel, etc.), stainless steel, aluminum alloy, copper alloy.
2. Molding Process: Green sand, resin sand, waterglass sand, lost wax/silicon sol, or die casting.
3. Melting Facilities: Cupola furnace, medium frequency induction electric furnace, or electric arc furnace.
4. Casting Inspection Facilities: Direct-reading spectrometer, metallographic analysis, magnetic particle inspection, ultrasonic inspection, X-ray inspection, mechanical property testing.
5. Heat Treatment Facilities: Aging oven, electric furnace, normalizing, quenching and tempering equipment.
6. Surface Treatment: Shot blasting, polishing, chrome plating, zinc plating, powder coating, etc.
7. Machining Facilities: CNC centers, NC lathes, NC milling machines, NC boring machines, drilling machines, and other common machines.
8. Inspection Facilities: CNC 3D inspection facilities and others.
9. Industrial Categories: Tractor, heavy-duty truck industry, car industry, farm machinery, construction engineering machinery industry, power industry, elevator industry, valve industry, general machinery industry, etc.
10. Part Unit Weight Range:
    For grey iron casting: up to 15,000 kg;
    For ductile iron casting: up to 4,000 kg;
    For high manganese steel casting: up to 5,000 kg;
    For carbon steel & alloy steel casting: up to 10,000 kg;
    For aluminum/copper alloy die casting: from 8g to 12kg;
    For investment/lost wax casting: up to 80kg;
11. Representative Products: machine bed, machine table, bearing stand, housing, casing, cover, valve body, pump body, big ring gear, big pulley, big sheave, bolster, frame, rear frame, front frame, engine block, mill ball, hammer, jaw plate, bucket tooth, front idler, excavator sprocket, link rod, bucket link rod, barrel liner, grate plate, top grate, open grate, front wall, and rack, etc.
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Item: Drain, Grating, Manhole Cover Material: Cast Gray Iron, Ductile Iron Shape: Round, Square, Rectangle, Triangle Process: Drawing - Mould Making - Raw Casting - Sand Blasting - Rough Machining - Surface Treatment - Product Inspection Size Range: 200mm to 1200mm, Weight Range: 7kg to 154kg Surface Treatment: Spray Coated, Epoxy, Painted, Enamel, etc. Certificate: ISO9001:2000, SGS Class: A15, B125, C250, D400, E600, F900
2) Manufacturing Process
1. Sample or Drawing from the Customer
2. Tooling Proposal and Discussion
3. 3D Tooling Design
4. Tooling Production
5. Rough Parts Manufacturing
6. CNC Machining
7. Fitting and Finishing
8. Tooling Measurement and Check
9. Assembly
10. Trial Production
11. Correction
12. Final Trial
13. Sample Inspection
14. Sample Approval by Customer
15. Tooling Approval
16. Ductile Iron Sand Casting
3) Company Profile
We mainly focus on casting parts, machined parts, and other products. Our Import and Export Department has extensive experience in foreign trade, with products primarily exported to the United States, Denmark, Italy, Russia, Australia, and other countries.
4) Typical Products
Scaffold fittings, template parts, railway fittings, ring flange, electromagnetic steel cover, piston, pressure plate, center plate, wear plate, cylinder, impeller, disc, etc.
5) Quality Control
Quality First, Price Best, Service Foremost!
We guarantee the best service at all times!
Item
Manhole Covers
Size
DN100-1000mm
Surface Treatment
Black Painted, Oil, Painting
Shape
Square, Round
Material
Ductile Iron, Cast Iron, QT500
Heat Treatment
As per your requirement
Advantages
On-time delivery, according to material demand
Packing
Wooden case or as per your request
Delivery
Within 30 days after receiving last confirmation information
FAQ
1. Q: Why choose Shengao product?
A: We have our own plant — Weifang Shengao Machinery Co., Ltd. Therefore, we can ensure the quality of every product and offer competitive prices.
2. Q: Do you provide OEM Service?
A: Yes, we do provide OEM service.
3. Q: Do you provide customized products?
A: Yes, we can manufacture according to your drawings and specifications.
4. Q: What is your payment term?
A: We accept various payment terms such as L/C, T/T, PayPal, Escrow, etc.
Our main products include: manhole; manhole cover; drain covers; cover drive; man hole; sewer manhole; manhole frame; manhole covers for sale; recessed manhole covers; cast iron manhole covers; manhole covers round; manhole cover manufacturers; double sealed manhole cover; sewer cover; cast iron drain cover; heavy duty manhole covers; round manhole covers; metal drain covers; sealed manhole covers; manhole cover and frame; grate covers; round drain covers; sewer manhole cover; manhole cover suppliers; drain covers grates; sewer covers drain covers; iron manhole cover; recessed drain cover; manway cover; metal manhole cover; manhole cover frame;
OEM Iron Casting Sanitary Sewer Manhole Cover by China Manufacturer
OEM Sand Casting Manhole Covers