77.020 - Production of metals

GB/T 45164-2024 in English

Classification and designation of defects in investment castings

VALID

Issued on:2024-12-31 | Implemented on:2025-07-01

DB41/T 2409-2023 in English

VALID

Issued on:2023-04-28 | Implemented on:2023-07-27

GB/T 4134-2021 in English

Gold ingots

VALID

Issued on:2021-08-20 | Implemented on:2022-03-01

DB13/T 5013-2019 in English

VALID

Issued on:2019-07-04 | Implemented on:2019-08-01

DB13/T 2807-2018 in English

VALID

Issued on:2018-08-10 | Implemented on:2018-09-10

DB37/T 3186-2018 in English

VALID

Issued on:2018-04-28 | Implemented on:2018-05-28

DB37/T 3187-2018 in English

VALID

Issued on:2018-04-28 | Implemented on:2018-05-28

DB37/T 3155-2018 in English

VALID

Issued on:2018-02-24 | Implemented on:2018-03-24

DB37/T 3156-2018 in English

VALID

Issued on:2018-02-24 | Implemented on:2018-03-24

YS/T 1108-2016 in English

Safety production regulations for tin smelting

VALID

Issued on:2016-07-11 | Implemented on:2017-01-01