Complete Variety ISO2531 En598 De 98-1668 DN80-DN2600 Ductile Iron Pipe Used for Hydraulic/Automobile Pipe, Oil/Gas Drilling
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High Tensile Strength 20mnsi Mining Industry Self Drilling Hollow Grouting Rock Bolt Cold/Hot Rolled Cold-Drawn Anchor Rod for Machinery Chemical Industry
Product Description Zhengde The hollow anchor consists of five parts: hollow drill pipe, plastic drill bit, grout stopper, backing plate, and nut. The drill bit is made of engineering plastic and is ...View More
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High Tensile Strength 20mnsi Mining Industry Self Drilling Hollow Grouting Rock Bolt Cold/Hot Rolled Cold-Drawn Anchor Rod for Machinery Chemical Industry