Supply of spring, spring will find the complete specifications to Yongnian constant light spring compression spring, spring to provide you with the latest price quotes, manufacturers sales rankings and spring specification details, for businessmen to provide the most useful information spring. Spring conditions: simple shapes, sections smaller discontinuity large spring Requirements: 65 785-815 ℃ oil quenching, 300 ℃ 400 ℃, 500 ℃. Tempered at 600 ℃, the corresponding hardness HB512, HB430, HB369 compression spring code, 75,780-800 ℃ oil or water quenching, 400-420 ℃ tempering, HRC42-48. Supply of spring, spring will find the complete specifications to Yongnian constant light spring compression spring parameters, to provide you with the latest price quotes spring. Conditions: Big leaf spring heavy duty, high spring, high fatigue limit and coil springs requirements: 50CrVA, 60SiMnA 860 ℃ oil quenching, 475 ℃ tempering, HRC40-45 compression springs, compression spring parameters, compression springs manufacturers Procurement Opportunities fine Constant light selected by Yongnian constant light spring. Yongnian constant light spring (www.hgtanhuang.com) is specialized in "spring, compression spring, extension spring, disc springs, rubber springs, die springs, mining equipment spring" of the enterprise, the company adhering to the "honesty, hard service" philosophy, to provide you with the highest quality products and services. Welcome to inquire! Contact: Du Xia changed.