The special characteristics: 1.New Generation of grooved &
rugged galvanized steel keel 2. We have passed the national
authority prove,Our light steel keel compared the same material ,
the strength improved 28.5% 3.Ju Gang Steel Keel is patented
product.The patented No. is ZL2007 3 30077666.8 & ZL2007 3
0077667.2 4.The surface content of galvanized zinc is over 100g/m2.
5.If order special size no need to pay the extral fees.
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