Onye na-emepụta Pjs ụmụaka dị elu na China.
Ọkachamara onye nrụpụta nke obere pajamass ụmụaka na-eyi, ahụmihe karịrị afọ 9. Guzosie ike na 2013, na Factories na kwa ọnwa ike bụ n'elu 1000000pcs.