Eleghị anya ị bụ onye njikwa nwoke ọkpọkọ nke nwoke , bụ onye na-achọ dị elu nke nwoke nwoke , na Yuyao Ruihua Hardware Factory bu onye na-ebuputa ya na ndi na-ebuputa ya nwere ike iru mkpa gi. Ọ bụghị naanị na nwoke pipe NPT anyị mepụtarala asambodo Internationallọ Ọrụ Internationallọ Ọrụ International, mana anyị nwekwara ike iru mkpa nhazi nhazi gị. Anyị na-enye ọrụ ntanetị, ị ga - enweta ikike iji nweta nduzi ọkachamara na nwoke pipe npt . Egbula oge ị ga-akpọtụrụ anyị ma ọ bụrụ na ị nwere mmasị na nwoke pipe NPT , anyị agaghị ahapụ gị.