但し、黒は色で判別できない⇒証明をつけさせる証明書付、定期検査

但し、黒は色で判別できない⇒証明をつけさせる
証明書付、定期検査

ผลลัพธ์ (อังกฤษ) 1:

However,
with certificate, black periodic inspection to let you put the ⇒ proof that can not be distinguished by color

ผลลัพธ์ (อังกฤษ) 2:

However, black cannot be determined by its color ⇒ equip certificate
comes with a certificate and periodic inspection

ผลลัพธ์ (อังกฤษ) 3:

But a
proof memo, periodical inspection to let the black is colored it and attach the ⇒ proof that you can't distinguish