on-shore wind turbine foundation base, prestress, precompression, pre-tensioning, post-tensioning, anchor bolt cage, rock bolt, anchor bolt certificates, iso, China manufacturer supplier for sell Anyang Longteng Heat Treatment Material Co.,Ltd

on-shore wind turbine foundation base, prestress, precompression, pre-tensioning, post-tensioning, anchor bolt cage, rock bolt, anchor bolt certificates, iso, China manufacturer supplier for sell Anyang Longteng Heat Treatment Material Co.,Ltd

continuous thread bolts,full thread,rock bolt,rock bolts,civil,mining,roof support,wall support,china,supplier,for sell,soil nail,china,civil,for sell,full thread,mining,rock bolt,rock bolts,roof support,soil nail,supplier,wall support,rock anchor bolt,rebar,rockbolt,soil nails,soil anchors,screw anchor,rebar,fixation,rock stabilization slope stabilization,embankment,stabilization,excavations,fixation of rock fall mesh,avalanche barriers,pre-stress,manufacturer,factory,for sale,sell,export,astm,a193,grade,b7,b7m,42crmo,42crmoa,35crmo,alloy steel,round bar,for,trade,trading,trader,steel,round,bar,alloy,carbon,heat treatment,heat treated,heat treating,qt,quench,temper,quenching,tempering,quenched,tempered,astm 42crmo4,42crmo4,machine,construction,axes,steel structure,1 3 sae 4140h,1.7225 jis scm4 iso 683,4140rh mechanical composition: tensile strength: min 125 ksi yield strength : min 105 ksi elongation rate: min 16% reduction