
XuZhou Shenwei Foundation MachineryTechnology Co., Ltd, aprofessional manufacturer of Kelly bar, possesses a leading positionof Kelly bar's manufacturer and the largest scale of production inChina. The advantages of our Kelly bar, such as low weight, highstrength, high abrasion-resistance, high-reliability are safeguardedtechnologically by superior process, advanced machining equipmentsand special fixtures. Large scale of alloy tube imported form GemmanyMannesmann or locally-made in stock ensures us to ...