1. Primary business:

Nanjing Ouao Chain Co., Ltd specialized in supplying high strength lifting chain,alloy steel lifting chain,high tensile steel chain, high tensile steel chain, G70 transport chain, G30 proof coil link chain, short or long link chain and chain sling mining chain, lifting chain, G30, G43, G50, G60, G70, G80, G90, G100, G120,lashing chain, lifting round link chains, proof coil chain ASTM 80 (G30), high test chain ASTM80 (G43), transport chain ASTM 80 (G70), Norwegian standard link chain, Korean standard link chain, DIN 766 LINK CHAIN, DIN 764 LINK CHAIN, NACM90 STANARD LINK CHAIN, GRADE 80 HIGH TEST CHAIN, PROOF COIL CHAIN NACM84/90 (G30), NACM96 STANDARD LINK CHAIN


2. Product description:

G30,G43,G50,G60,G70,G80,G90,G100,G120 high strength Mining chain Lifting chain

1).Sizes 6mm to 22mm, using alloy steel 25MnV or 20MN2,

Sizes24mm to 42mm using alloy steel 23MnNiMoCr54 importer from Germany

2).Surface:Self color, black oxide, electro galvanized, hot dip galvanized, black painted etc.

3) Material: 20Mn2, 25Mnv, 23MnNiCrMo54, Q235 (high strength chains for machines)

4) Standard: National Standard (GB/T20947-2007), International Standard (ISO3077-2001), American Standard (NACM96, ASTM80), European Standard (EN818-2, EN818-7), AS/NZS Standard

5).Safety factor:4:1

6).advantage: resistant to corrosion & rust; durable.

7).Length:Any length is ok,frequently cut chain into lengths to suit our customers' specific needs.

8).Equipment: automatic knitting chain machine, automatic welding machines, automatic correction machine,heat treatment machine,loading test machine,polish machine


Raw Material ------ Wire Drawing ------ Bending ------ Welding and Trimming ------ Surface Checking ----- Break Testing ------Calibrating ------ Heat Treatment ----- Proof Laod Testing ----- Surface Treatment (Black oxide,Galvanized,Polish,etc) -----Break Re-testing ----- Cutting Chain per piece ----- Final Inspection ------ Packing ------ Shipping ---- After-Sales Service
Advantages:
1. Reliable quality
We adopted advanced manufacturing process and our products are inspection-exempt products in many countries.
High-strength shackle, American Standard shackle, shackles, the company has advanced production equipment and complete testing instrum ents shackle

2. Competitive price
We can produce various kinds of chians according to your request on materials, technology, delivery etc. so the prices are different. Welcome to inquire.

3. Prompt delivery
Our company is located in Nanjing which is near to nanjing,shanghai and ningbo port t. It is very convenient for transportation.

4. Good reputation
We have rich experiences in manufacturing rigging. Our clients ,such as Germany,Australia,North America and Asia, always put their trust in us