E-mail: [email protected] Whatsapp: +8613647327093 Tel: +86-731-8403-0163
E-mail: [email protected] Whatsapp: +8613647327093 Tel: +86-731-8403-0163
Unidrill 630-5*24/interlocking kelly bar will be delivered to Inner Mongolia to contribute to the construction of Selamulron Bridge in the highway from Wuhan to Wuhai, the maximum construction depth of it could be up to 110 meters.
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