1 represents domestic wool

Indicates worsted knitted wool; 3 represents woolen knitted wool; 4 represents new varieties. The second digit represents the raw material used and consists of 1 to 8. 1 represents domestic wool; 2... For example: "1175" means wool made of woolen domestic wool 7.5-thread yarn. The trademark of wool is a small label attached to the yarn skein, usually with 3 digits printed on it...ヅLonely answered carefully and I hope it will be helpful to you!