flow mark meaning in Chinese

波鳞
波流痕
波纹〔涂料涂膜时的缺陷
材料纤维纹路（金相）
夹水痕
流动斑点
流痕/波纹
流纹

Surface must be smooth , no copper stain 、 shrinkage 、 flow mark 、 bubble etc
表面光洁、色泽均匀，无缩瘪、流痕、气泡等缺陷。
Weld flow mark
焊接流痕
No burr , flash , scratch , flow mark , bright speck , shrinkage defects etc on the surface of product
外观表面不可有毛边、刮痕、流痕、亮痕、缩水等不良现象
Flow mark is the imprint of the movement of melting materials and is in linear pattern to surround runners . the flow mark is resulted from fast condensation of materials inside the mold cavity and is the lines caused when the materials run in
流纹flow mark是熔融材料流动的痕迹，以浇口为中心而呈现条纹形状，流纹是先注入模腔内之材料冷却过快，而与其后流入之材料间形成界线所致。