Room 1009,No.12 Building ,28 Xiangyuan Road, Gongshu district ,Hangzhou 310012, Zhejiang, China  Hangzhou, Zhejiang

Hangzhou Sinyor Building Material Co.,ltd is a large-scale privately operated enterprises manufacturing functional concrete admixture, cement admixture and other special materials for projects as tunn...

Acid copper plating brightener additive series of refined nickel bright nickel-depth low-foam wetting agent refined nickel-nickel-slot acid copper impurity impurity additive agent pre-treatment series...