Big diameter pipe can be composed of several round steel brush together, at both ends with wire tightly, within the lumen pull brush back and forth, until the metal color, reoccupy cotton brush clean.
大管径管子可由几个圆钢刷组装在一起，两端用铁丝扎紧，在管腔内来回拉刷，直至露出金属本色，再用棉纱拉刷干净。
Roofing Systems, Razors and Shavers, Cotton Buds, Personal care and Health care Products, Beauty and Healthcare Products, Skin care, Nail care, Hair, Tooth Paste and Tooth Brush.
采购产品屋面系统，剃刀和剃须刀，棉花花蕾，个人护理和保健产品，美容和保健产品，皮肤护理，指甲护理，头发，牙膏和牙刷。
Rust is not thick, can use steel wire brush, steel wire cloth to wipe the surface, until the instinctive quality with stainless steel pipe, reoccupy cotton rub-up.
锈蚀不厚，可用钢丝刷、钢丝布擦拭表面，直至露出不锈钢管本色，再用棉纱擦净。
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