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Telescopic OD419 Interlocking Kelly Bar Construction Machinery Tools Parts

Nov 09, 2022

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# construction machinery interlocking kelly bar # od 419mm interlocking kelly bar # construction machinery telescopic kelly bar

Advantages of our drill pipe: 1. Adopt the advanced technology design and standard modular design. 2. Equipped with advanced processing facilities, processing technology and auto manufacturing equipment . 3. The kelly bar is with low weight , high strength , good abrasion resistance. 4. The material is from China top pipe manufacturer or imported from Germany . the seamless steel tube is with alloy and special heat treatment . 5. Have granted more than 35 patents for the

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