22.請問一般在管路分歧處使用管配件時,下列何種不適用?
(A) Y 型接頭(Y Type Banded)
(B)卜申(Bushing)
(C) T 型接頭(Tee)
(D)十型接頭(Cross)
答案:登入後查看
統計: A(26), B(1290), C(43), D(35), E(0) #2818941
統計: A(26), B(1290), C(43), D(35), E(0) #2818941