免费刺激视频,久久国产美女,黄色小视频观看,青青青伊人,av影片在线,独家记忆电影在线观看完整版中文,嗯嗯啊啊喔喔

CN
CN
    • 潤強絲?-S2 End-hooked Steel Fiber (Dispersed, Glued)
    潤強絲?-S2 End-hooked Steel Fiber (Dispersed, Glued) Download

    15658479867185470sqQ.jpg

    RQS ? -S2 is cold-drawn steel-wire fiber that has hooked ends. In comparison to ordinary steel fiber, RQS ? -S2-reinforced concrete possesses more ductility and has a high load-bearing capacity. RQS ? -S2 can reduce micro-crack expansion due to plastic shrinkage, drying shrinkage and thermal cracking, and obstruct macro-crack formation and propagation.