yantai, shandong, China
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Welcome to Yantai Yunsheng Petroleum Accessories Co.,ltd
Manufacturer / Exporter / Supplier Of API 5 / 8, Polished Rod Couplings, Steel Bar, Sub Couplings, Sucker Rod Couplings
We Offer API 5/8. Material: AISI 5140 Standard: API Spec 11B Main specification: OD:1-1/2" (38.10mm) ID: 15/16"(23.81mm) Length: 4" (101.6mm) Weight: 0.56kg Other Size: 3/4"; 7/8";1"; 1-1/8" Smoothness: 3.1*10-3 Coat Thickness(in): 0.01in ~ 0.02in Basic hardness: HRC 16-23 Surface Hardness: HRC 55-62 Bonding Strength(Mpa): 484 Hole rate: 180 days
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Helen Sun (Yantai Yunsheng Petroleum Accessories Co.,ltd)No. 26 Dongxing Road, Shengquan Industrial Park, Laishan District, yantai, shandong, China
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