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3.5*19 drywall screw Specification:
1.Material:spring steel, stainless steel.carbon steel.
2.Size and color:3.5*19 or according to the samples or the drawings.
3.Application:Widely used in steel structure engineering, metal food plastic machinery, oil equipment, vessels, boilers, mould, railway highway Bridges, power plants and all kinds of pipe installation and used in construction, decration and integrated ceilling,etc.