hollow anchor bar for coal mining

{"cid":"91202120","title":"Self Drilling Anchor System Full Threaded R25n Hollow Anchor bar Anchor Bolt R25 Anchor Rods Full Thread Rebar Bolt for Coal","imgUrl":"https:\/\/img.chinax.com\/nimg\/24\/1e\/0c8c119d3870fc421b0db16ed8d0-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"MTH","Model Number":"R25","Minimum Order Quantity":"1000pcs","Delivery Time":"10-15 days","Certification":"ISO 9001","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"5000 pieces per month","Packaging Details":"wooden case","Processing Type":"Forging","Key Words":"Self-Drilling Bolt","Material":"Steel","Thread Type":"R25, R32, R38, R51, T76","Surface Treatment":"Galvanized, Black Oxide, Painted","Machine Type":"rock drill rig","Anchor Head Type":"Plate, Domed, Spherical"}}

{"cid":"91096850","title":"Hot Galvznized Steel Anchor Bolts For Loose Soil \/ Weathering Rock","imgUrl":"https:\/\/img.chinax.com\/nimg\/d5\/a8\/733de8bdf0a365f0858571e1a03f-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"MIROC","Model Number":"Hollow Anchor Bolts","Minimum Order Quantity":"100 Meter\/Meters","Delivery Time":"10-15 working days","Certification":"ISO","Place of Origin":"Shandong,China","Payment Terms":"T\/T, L\/C, D\/P, Western Union,Paypel","Supply Ability":"600000 Meter\/Meters per Month","Packaging Details":"Packed in bundles","Type":"Hollow Anchor Bolts","Size":"R33N","Outside Diameter":"32mm","Application":"Mine, tunnel, slope, foundation pit","Material":"Carton Steel","Surface treatment":"Hot Galvznized"}}