3层防护，涂层厚度≥50μm 内层：锌锡合金涂层 中层：纳米材料封闭层 外层：铝环氧树脂层 Zinc-aluminum alloy mechanical coating 3 layers of protection, coating thickness ≥ 50 μm Inner layer: zinc-aluminum alloy coating Middle layer: nano material sealing layer Outer layer: aluminum epoxy resin layer
EPDM垫圈 EPDM垫圈结合大华司凹槽，气密性、防水性更强 EPDM gaskets EPDM gasket combined with groove of big washer has better air tightness and water resistance.
闪电尾 攻速更快，施工更轻快 Lightning sharped of steel plate Faster penetration of speed and lighter construction
双层牙 波峰固定时，避免漏水踩踏凹陷 波谷固定时，避免脱胶 Double thread When the wave crest is fixed, it avoids water leakage and depression. When the wave trough is fixed, it avoids degumming. |