HANDAN TOPMETAL CO.,LTD.
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Seamless steel pipe
Threaded hollow bar
Solid threaded bar
PC strand
ERW pipe
Other steel
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Micropile
Rock bolt
Soil nail
Ground anchor
Port tie rod
Product standard
ISO 10208 Rock drilling equipment - left-hand rope threads
GB/T 20065 Screw-thead bars for the prestressing of concrete
TB/T 3209 Technical regulations for hollow bolt
GB/T 14370 Anchorage, grip and coupler for prestressing tendons
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