亲子乱高潮1000部,色婷婷五月综合亚洲小说,禁伦H肉高辣网站视频,亚洲成av人影院

耐諾鉻鋼球(NanorCr)：
    采用一級的52100軸承鋼經先進的熱處理工藝精制而成。球內金相組織細膩均勻，沒有毛隙和空腔，具有理想的硬度和斷裂韌性。100%的球型度和優秀的耐磨性是所有磨介中*沉的一種。適合對粘度2000cps以上漿料作高效的分散和研磨。
特點：比碳鋼珠、不銹鋼珠具有更高的耐磨性和對淺色物料更低的灰色污染。
鋼 含 量: 97%,         鉻含量: 1.30-1.60%,
碳 含 量: 0.98-1.10%,  硅含量: 0.20-0.45%,
比    重: 7.8kg/dm3,   散  重: 5.0kg/L,
絡氏硬度: 62-65C,      粒  徑: 0.35-25.4mm
包    裝: 25kg/桶
NanorCr chrome steel balls are made from high quality 52100 type chrome steel with special procedure and under recise control. There is not porosity in the beads, 100% roundness and high hardness. It can be used to grinding pastes in more than 50,000cPS in pearl and ball mills.
Density: 7.8kg/dm3,               Hardness Rockwell: 62-65C
Steel %: 0.97,                    Chrome %: 1.5
Crushing Strength: 6000N (2mm)    Sizes: 0.35-25.4mm 
Packing: 25kg/bucket