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Zhengzhou Yu-Long Machinery Equipment Co., Ltd.is located in Zhengzhou city, Henan Province, China. The city of Zhengzhou is featured of the transportation hub of China with convenient transportation and abundant resources.
Zhengzhou Yu-Long Machinery Equipment Co., Ltd. is a powerful combination of trade and manufacture. As an OEM supplier of over 10 year exporting experience, Yu-Long company has professionally provided the iron and steel casting, forging parts, metal stamping, and machining products, as well as technical services after sales.
We supply the casting, forgings, metal stamping products, and machining products mainly according to the drawings or samples from the customers, following the customer-designated standards such as ASTM, BS, DIN or JIS. The products are used in many industrial fields such as auto cars, trucks & trailers, trains, oil and gas pipelines, machinery equipments, power devices and so on. These products are mostly exported to the North America, Europe, Australia, and Japan, and we have established long term and close relationship with our customers with our good quality and excellent service.
Through more than ten years growth, we have accumulated abundant experience and resources, and are still being exploring and making progress.
All staff in Yu-Long have a common faith: through our effort, continuously production process improvement, scientific production arrangement, finally provide the high quality products with competitive price to our customers.
Our office environment
Our foundry shop
Our machining shop
1. Parts used for autos, trucks, and trailers:
Front hanger castings; Top pad castings; Rear hanger castings; Upper kingpin connection castings;
Torque rod castings; Exhaust plug castings; Flange castings; Rivet castings; Trigger pin castings;
Outrigger castings; Wheel hub castings; Actuating cam castings;
2. Parts used for trains:
Manganese steel wear plate castings; Handle castings; Actuating lever castings; Control Rod Assembly castings; Clevis castings; Tee branch castings; Actuating tube castings; Actuating collar castings;
3. Parts used for municipal constructions and residence water tubes, coal gas tubes, natural gas tubes and so on:
Sleeve body cast steel parts; Saddle bodies castings; Cast iron bonnets; Manhole cover casting;
Tube coupling body castings;
4. Parts used for engineering and machinery equipments:
Cast iron pistons; Stuffing box castings;
5. Gear box parts:
Turbo Box castings;
6. Hardware and tools products;
Door hinge base parts; hinge stamping parts; Door hinge strap parts; Lift handle stamping parts;
Anchor stamping parts; spring gauge parts; Spring plug repair block casting; Sheave castings;
Sheave block castings; bolts and nuts; Washer castings; Manhole cover hooks; Inverted trolley castings;
Stainless steel safety restraint caps; ductile iron chainwheels; Stainless steel chainwheels; Aluminum chainwheels;
All types of valves made of different materials;
9. Parts used for agricultural machinery equipment; Mining machinery and equipment.
The material standards we have used:
1. Carbon Steel Casting: ASTM A27 (Grade 60-30, 65-35, 70-36);
2. Grey Iron Casting: ASTM A48 (Class 20 A B C S; Class 25 A B C S; Class 30 A B C S; Class 35 A B C S);
3. Grey Iron Castings used on valve flanges and pipes: ASTM A126-04 (Class A B C);
4. High Manganese Steel Casting: ASTM A128/128M-93
5. Structure High Strength Steel: ASTM A148 (80-40, 80-50, 90-60, 105-85);
6. Grey Iron Castings used on vehicles: ASTM A159 (G 2500a; G 3500b);
7. Carbon Steel Casting used in high temperature with good weldability: ASTM A216 (WCA, WCB, WCC);
8. Pressure Steel Castings: ASTM A487/487M;
9. Wear-resistant Ductile Iron Casting: ASTM A532/A522M (12%Cr; 15%Cr-Mo);
10. Ductile Iron Casting: ASTM A536-84 (60-40-18; 65-45-12; 80-55-6; 80-60-03);
11. Isothermal Quenching (austenite) Ductile Iron Castings: ASTM A 897-97 (850-550-10; 1050-700-7; 1200-850-4; 1400-1100-1);
12. Stainless Steel Castings: ASTM A747-89 (CF8M; CF3M; CF8; CF3);
13. Aluminum Castings: ASTM B26 (A201, A204, A208)
14. Forging parts: 1020 steel, 1035 steel, 1045 steel, 4140 steel, 1541 steel etc.
We also can meet the BS, DIN and JIS standards.
Chemical Components and Mechanical Properties Inspection Equipments
Our customers distribution
Our Contact Information
Zhengzhou Yu-Long Machinery Equipment Co., Ltd.
High-Tech Zone, Zhengzhou City, Henan Province, China
Sales Manager: James Wang