Tianjin Hollysen Metal Product Co. Ltd is one of the biggest scaffold manufacturer in North of China. We take great pride in our strong production capability that comes from the comprehensive....
we produce different kinds of screws, such as drywall screws , chipboard screws , self-drilling screws , self-tapping and so on.the size of drywallscrew is from3.5* 16to4.8* 152, the material is c1008....
Tianjin Naboscrew Standard Component Make Co., Ltd is located in the Xiqing District , Tianjin, which is a professional company producing different kinds of screws, such as drywall screws , chipboard....