| Materail | ASTM A403 ASTM A815 A182 etc |
| Grade | WP304/304L,316/316L,2205,2507,F304/304L,316/316L etc |
| Standard | ASME B16.9,ASME B16.11 etc |
| End Contaction | BW,SW,Threaded,Groove |
| Outside Diameter | 1/2" - 24" (SMLS/SEAMLESS) |
| 26" - 100" (WELD) | |
| Wall Thickness | Butt Welded : SCH10-SCH160, STD, XS, XXS |
| Processing technic | BW TYPE |
| SMLS = Seamless (Size 1/2" - 24") | |
| Welded = Seam Welded with 100% X - Ray Test | |
| Surface | Sand Blast |
| Package | Wooden box,Pallet |
| Inspection | BV,SGS,INTERTEK |
| Certificate | ISO9001;2000,API |
| Date of Delivery | 15-25days |
| Payment | L/C or T/T |
| Port of Shipment | Tianjin,China |
| 优化维度 | 核心作用 | 关键操作示例 |
|---|---|---|
| 关键词优化 | 匹配用户搜索意图 | - 长尾关键词挖掘(如“适合新手的独立站工具”) - 内容与搜索意图对齐(信息型 vs 交易型) |
| 内容质量 | 提供高价值信息,赢得用户与算法认可 | - 原创深度内容(3000字+详细指南) - 多媒体整合(图文、视频、图表) |
| 技术SEO | 确保网站可被谷歌高效抓取与索引 | - 优化网站速度(压缩图片、CDN加速) - 修复404错误、结构化数据标记 |
| 外链建设 | 提升网站权威性(Domain Authority) | - 获取高权重网站外链(行业媒体、博客) - 避免垃圾链接(如购买低质外链) |