产品***,符合国标,35号钢热处理HRC28-38度,45号钢热处理HRC38-46度，Cr钢HRC55-60度。同时也生产铜和不锈钢的园柱销,园锥销.量大价格优惠。平键符合国标,胶木制品可以根据厂家的图纸生产.国标号:GB117-86,GB118-86,GB119-86,GBTheproductqualityfirst,conformstoGBcode,35steelheattreatmentHRC28-38,45steelheattreatmentHRC38-46,CrsteelHRC55-60.Simultaneouslyalsoproducescopperandthestainlesssteelgardenplug,thegardentaper.Quantitybigpricepreferentialbenefit.TheflatkeyconformstoGBcode,thebakeliteproductmayactaccordingtothefactorytheblueprintproduction.GBcode:GB117-86,GB118-86,GB119-86,GB120-86,GB878-86,GB881-86,GB1096-79.120-86,GB878-86,GB881-86,GB1096-79.)