... Guard Rail For Railway Crossing 平交道护轨 Guard Timber 轨枕系杆 / 护木 Hanger Rail 拱型轨条 ...
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guard timber of bridge 桥梁护木
guard timber bolt 护木螺栓
guard against error timber 护木
guard against error timber bolt 护木螺栓
The active compound of Water Guard penetrates into the pores of concrete, mortar, precast concrete slab, SLATE, brick tile, masonry, timber, etc.
其活性化合物能渗入混凝土、砂浆、预制混凝土板、石板、砖瓷、石材、木材等的微孔。
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