sandcloth

1. 砂布：sand-stone 砂石 | sandcloth 砂布 | sandfilter 砂砾过滤器

2. 砂布(磨擦用布)：030160 砂布(磨擦用布) Abrasive cloth | 030160 砂布(磨擦用布) Sandcloth | 030166 砂纸 Abrasive paper

3. 金刚砂布：sandcloth 砂布 | sandcloth 金刚砂布 | sandcrack 砂石性蹄裂

4. 金刚砂布/砂布：sandcleaning 喷砂清理 | sandcloth 金刚砂布 砂布 | sandcoarseaggregateratio 砂石比

1. Welding earth wire: separate copper woven wire into three pieces, weave it again and enwind the phase respectively as well as weld it on the shielded copper band with electric iron and soldering tin; polish steel band welding area with sandcloth, and firmly weld with armored cable after wrapping up with copper wire.
    2焊接地线：将铜编织线拆开分成三份，重新编织分别绕各相，用电烙铁、焊锡焊接在屏蔽铜带上；用砂布打光钢带焊接区，用铜丝绑扎后与钢铠焊牢。