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Guangdong STL Fastening System Co., Ltd.
广东史特牢紧扣系统有限公司
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Lock washers
Disc washers
Spring washers
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GB1972 Disc Spring Washer
(GB /T 1972 (B) - 1992)
material
Carbon Steel
grade, rigidity
grade 12
Coating
electroplating
晋元达企业专业生产(SZJYD品牌)中国机械标准JB/ZQ4010/DIN6796.德标DIN6796-HS非常用标准.及国家标准GB 1972(A.B.C)系.DIN2093.。主要材质有60Si2MnA或50CrVA(51CrV4).SK5.SK7.65MN.420J2.SUS301.304.316.631(A2.A4)
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Similar Products
GB /T 1972 (A) - 2005
GB /T 1972 (B) - 2005
GB /T 1972 (C) - 2005
GB /T 1972 (A) - 1992
GB /T 1972 (C) - 1992
DIN 2093 (B) - 2013
DIN 2093 (C) - 2013
DIN 2093 (A) - 2013
DIN 6796 - 1987
DIN 9025 (S)
DIN 9025 (VS)
NF E 25-511 - 1984
NF E 25-511 - 1980