Ningbo Zhongli Bolts Manufacturing Co., Ltd. tọrọ ntọala na 2003, bụ ọkachamara emeputa nke elu-ike fasteners dị iche iche nkọwa maka dị iche iche ụdị, nke na-ekpuchi ebe banyere 10,000 square mita, aha isi obodo nke 1500,000 RMB, na ngụkọta kwa afọ nke 8,000 ton kwa afọ. Ụlọ ọrụ ahụ ewepụtala ọtụtụ alaka ahịa na mpaghara dị iche iche na China. Ka ọ dị ugbu a, a na-ebupụ ngwaahịa ụlọ ọrụ na Europe, USA, Middle East, Africa, Southeast Asia na mpaghara ndị ọzọ. Companylọ ọrụ ahụ nwere ikike teknụzụ siri ike, akụrụngwa nnwale zuru oke yana igwe igwe na-akpaghị aka n'ọtụtụ ebe oyi na-ekpo ọkụ, iji nye gị ngwaahịa a pụrụ ịdabere na ya na nke dị elu.Our isi ngwaahịa ZYL ika fasteners gụnyere structural hex bolts ASTM A325 ụdị. 1, A490, hex isi bolts DIN931, DIN933, EN14399, DIN6914