升级到高级会员并解锁额外的福利. 更多详细资料
加入我们,关注您的公司成长! 成为全球1万多家金属材料公司的一分子 更多详细资料
API Standard Oilfield Drilling Sinker Bars Oil Drilling Weight Rod API11B sucker rod ...
Product Name slotted pipe manufacturers oil well perforated pipe slotted bore pipe ...
Overview Specifications Steel Grade: Stainless Steel Standard: AISI, ASTM, DIN, ...
Manufacturing process of heavy alloy: http://www.zzstc.com/Tungsten-Alloy/heavy-allo...
API Spec 11B Sucker Rod for Oil well drilling polish rod AISI 4130 sucker rod A suc...