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API 7-1 4145&Non-mag Drill Collar
I-Drill Collar yenziwe kwi-AISI 4145H elungisiweyo ecinyiweyo kunye nentsimbi epholileyo kwaye iphathwa ngobushushu ngobude bayo bonke ukuqina okufanayo kunye nokuqina.Iimvavanyo ezingqongqo ze-metallurgical zenziwa ngokweenkcukacha zokuqinisekisa ukuba unyango lobushushu luvelisa ukuqina okuhambelanayo kunye nobuninzi ngokunzulu kwebha.
I-Landrill inikezela ngee-collars ze-drill kumgangatho kunye ne-spiraled ukusuka kwi-3-1 / 8 "OD ukuya kwi-14" OD ngokuhambelana ne-API, i-NS-1 okanye i-DS-1.
Igumbi 703 Isakhiwo B, iziko Greenland, Hi-tech uphuhliso zone Xi'an, China
86-13609153141
