发布时间:2025-01-20 06:03:04
螺纹规格有1.5、2.0、2.5、3.0、螺距。螺距越小管子越细,螺距大管子粗。
塑胶厂那些ABS ABS(VO) PC 等等这一系列塑胶都有味道但是他们有毒吗
2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04 2025-01-20 06:03:04