釜座直径为54MM，且采用特殊设计的针板，可适用于缝制具有小曲度的物品；
The diameter of post is 54MM, and with special designed needle plate suitable for stitching the small-curved portion.
商时期文化遗存所出陶器同样以夹砂陶为主，泥质陶较少，器类主要有罐、釜、尊和器座等；
Shang deposit contained mainly Sandy ware, with fewer clay potteries. Major typologies included jar, Fu, Zun and vessel bases.
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