单词self-tapping-screw
网络: 自攻螺钉；自攻螺丝；自攻钉
Professional manufacture of self-tapping screw series products and non-standard products, is one of the best fastener manufacturers.
专业制造自攻螺丝系列产品及非标产品，是国内最佳紧固件制造商之一。
Nickel-Plated Steel Self Tapping Screw
镀镍钢制自攻螺丝钢材厂家