91中文精品,污污的视频免费在线观看,91就要激情,精品黄色网,欧美精品看片,久久久久久a亚洲欧洲aⅴ,天天干天天色综合网

Main Products
Products Grade: 316
Specifications: φ5.5~28mm
Applied Standard:  agreement
Characteristics: screw,fasteners,medical wire
Applications: Stainless steel wireStainless steel fasteners
Use of Products: 316 has good corrosion resistance,high temperature strength and good work hardening performance. It usually used for high corrosion resistance screw、fasteners、medical wire.