国产91桃色在线观看网站,亚洲精品视频在线观看免费,在线观看黄色小视频,在线观看黄色,日韩av免费在线观看,日韩三级电影在线观看,国产嫩草一区二区三区在线观看,亚洲精品在线观看视频

Wood processing: Select suitable wood (such as cedar) and cut it into the required size of the pencil.

Graphite and clay mixing: Graphite powder and clay are mixed in proportion to make the lead.

Slotting: Cut the wood into two halves and slot in the middle to embed the lead.

Embedding the lead: Put the lead into the slot of the wood and fix it with glue.

Bonding: Glue the two halves of the wood together to ensure that the lead is centered.

Molding: Cut the bonded wood into the shape of a pencil, usually hexagonal or round.

Painting: Apply multiple layers of paint to the surface of the pencil, and dry between each layer.

Printing: Print the brand, model and other information on the pencil.

Install the metal ring: Install the metal ring at one end of the pencil.

Fix the eraser head: Fix the eraser head on the metal ring.

Appearance Inspection: Check the appearance of the pencil for defects.

Writing Test: Test the writing quality and strength of the lead.

Storage: Store the packaged pencils in the warehouse. Shipping: Send pencils to various places according to order requirements.