Our company has advanced cooling equipments, self-contained physical, and chemical inspecting equipments; we have powerful developing and designing ability. we supply the areas of mechanics, electronics. traffics, agricultural mechanics. and building with heigh qulity products , our main products include:M5-27 international, Germany-made, America-made and England-made standard fastener, they are sold in europe, america, south-east ,and australia etc. now we are developing steel construction heavy six head bolt, network shelf bolt, 6 corner inside bolts, high strength bolt,expand bolt, two-heads bolt, deducting spiral shell's pole and nut completely, flatcu-shion, elastic cushion, and various kinds of parts , 10000 kilometers of china qualities walk regards our products as trust products . the trademark of "kongtai" was our province's famous trademark