shannxi hainaisen petroleum technology Co.Ltd

Date: 20th April 2016
12 1/4" HS652XA jekla telo Pdc Diamond bitov velikosti/API olje dobro Pdc Drill Bit
jekla organ, pdc drill bit, diamant sveder, 5 rezilo sveder, enojno sveder, pe??enjak vrtanje
Images
Latest News