短语词组短語zinc chrome coat 鋅鉻膜塗層zinc coat steel plate 零位板Uniformity of zinc coat 鍍鋅層均勻性zinc coat surface mass 鋅層麪質量thick zinc coat 厚鋅層Zinc coat plating 鍍鋅performances of zinc coat 表麪狀態zinc coat mass 鍍鋅層質量;鋅層質量 返回 zinc coat