...pping screws 线成形螺钉， Steel nuts and bolts 你知道金属加工厂铁螺钉螺母 Stainless steel nuts and bolts 不锈钢螺钉螺母 Special alloy nuts and bolts 特殊合金螺钉螺母 ..
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Stainless steel bolts and nuts shall be tightened on manhole covers.
人孔盖使用不锈钢螺栓和螺母拧紧。
Our company mainly produce highest quality and intensity Stainless Steel 304&316, various screws, nuts, barytron, bolts, small electrical screw.
本公司主要经营高品质不锈钢304.316各类螺丝，螺母，介子，螺杆；
We mainly produce the marble accessories, stainless steel stampings, and flat washers, spring washers, stampings, bolts, nuts and mechanical parts in all kinds of standard, specification and material.
主要生产大理石挂件，不锈钢冲压件，以及各种标准﹑规格﹑材质的平垫圈﹑弹簧垫圈﹑冲压件﹑螺栓﹑螺母等机械零部件。
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