1PCS on Alibaba means 1 piece. PCS is the abbreviation of a unit, which is widely used in import and export product business units. PCS stands for pieces, which means the number of units of a product, such as pieces, blocks, pieces, pieces, chapters, sheets, strips, sets, pieces, beds, and pieces. In business English, PCS refers to the unit of quantity (generally plural). For example, if the sales volume of a certain brand of computer is 350pcs/w, it means that 350 computers of this brand are sold every week.