A.普通沙發(fā)(1+l+3) B.轉(zhuǎn)角沙發(fā)或L型沙發(fā) C.沙發(fā)床、按摩沙發(fā) D.金屬木架結(jié)合沙發(fā)
A.多排鉆 B.直線(xiàn)、曲線(xiàn)封邊機(jī) C.定厚砂光機(jī) D.高頭車(chē)床
A.3%~10% B.6%~14% C.8%~16% D.10%~18%